
Suspect: Ahmed Almuhamed, 25, whose Syrian passport was found on the body of a suicide bomber, took more than a month to get to France after posing as a Migrant when he arrived in Leros, Greece

This is the face of one of the Paris killers who allegedly sneaked into France by posing as a refugee after being rescued from a sinking migrant boat as it emerged a woman and three brothers may have been part of the eight-strong ISIS kamikaze terror squad.

Serbian media claims Ahmed Almuhamed, 25, whose Syrian passport was found on the body of a suicide bomber, allegedly blew himself up at the Bataclan concert hall, where at least 89 people were slaughtered on Friday.

The newspaper, Blic, claims Almuhamed arrived with another of the bombers in Europe on the Greek island of Leros on October 3 on his way to Paris. Greek website Protothema have published ferry tickets showing the name of a second man, Mohammed Almuhamed, who could be a relation.

French police are hunting 26-year-old Salah Abdeslam, from Brussels, who is accused of renting a Volkswagen Polo used by the suicide bombers who killed 89 people at the Bataclan music venue on Friday.

It emerged on Sunday night that French detectives questioned Abdeslam as he crossed the Belgian border and let him go after he showed them his ID card.

Detectives soon realised heir blunder when they discovered that Abdeslam had rented a hire car abandoned near the scene of the massacre inside the Bataclan theatre. However, by the time they alerted Belgian authorities, the jihadi had abandoned the car in the jihadi stronghold of Molenbeek, Brussels and disappeared.

His brother Ibrahim is believed to have blown himself up during the Paris siege and a third sibling, Mohamed, has been arrested in the Belgian capital.

An official told the Washington Post another of the shooters was Bilal Hadfi, who was from Belgium and had spent time fighting with ISIS in Syria, who also died after detonating his suicide vest during a murderous rampage.

One of the attackers has been named locally as homegrown terrorist Omar Ismaël Mostefai , 29, from Courcouronnes, Paris. The petty criminal was known to police as a radical and identified by the fingerprint on a severed digit found after he detonated his suicide belt.

Investigators are now investigating claims that he went to Syria last year, and may have spent time training with ISIS terrorists.

Survivors have claimed that a woman was among the group shooting randomly into the crowd at the Eagles of Death Metal gig before three blew themselves up and a fourth person was shot dead by police before they could detonate their bomb.

At least 129 people died and another 99 were injured in Paris on Friday night after eight terrorists, including one as young as 15, attacked the Stade de France, restaurants and the packed Bataclan concert hall armed with AK-47s, grenades and wearing suicide vests.

More than 350 were injured - 99 of which are in a critical condition - and 30 of the dead have not yet been identified.

It is believed two of the bombers were carrying Syrian passports. At least two others are believed to be French while several could also be Belgian.

Prosecutors in Brussels have said two attackers killed in Paris were Frenchmen who lived in the Belgian capital and that two vehicles used in the terror attack were rented in Belgium.

The disclosure that some may have entered Europe as migrants, which came amid claims of French intelligence failures, inevitably raises new security concerns about the safety of Europe's borders.

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Wanted man: Serbian media says this is 25-year-old Ahmed Almuhamed, whose Syrian passport is pictured, who blew himself up at the Bataclan concert hall and is believed to have sneaked into France with another terrorist by posing as refugees from Syria

Tickets: A Greek website has uncovered the terror suspect's ferry tickets to Greece and shows he was travelling with a Mohammed Almuhamed, likely to be a relation

Travel log: Ahmed Almuhamed has been accused of being a suicide bomber at the Bataclan concert hall and is believed to be travelling with another member of the terror squad

Wanted: Police have issued an international arrest warrant for 26-year-old Salah Abdeslam, from Brussels, who is one of three brothers said to be involved in terror plot and rented their getaway

THE VITAL CLUES MISSED IN EUROPE BEFORE THE MASSACRE A series of vital clues appear to have been missed that could have averted the Paris atrocities. Iraqi intelligence warned US-led coalition countries of an imminent assault the day before the Paris attacks, it has emerged. At least one of the terrorists was a Parisian who had been on a terror watch list for five years, but was not being monitored closely enough to be stopped before he took part in the murderous attack. Greek authorities believe that two of the gunmen sneaked into Europe posing as a refugee from Syria – heightening fears that not enough security checks are being carried out on migrants. In May this year, The Mail on Sunday revealed the concerns of security analysts that Islamic State extremists were being smuggled into Europe among refugees crossing the Mediterranean. More than a week ago, a heavily-armed suspect was stopped in Germany on his way to Paris. Hidden in his car, police found a terrifying arsenal, including seven Kalashnikov assault rifles and seven hand grenades. The destination programmed into his satnav system was Paris but officers failed to alert anti-terror police. The 51-year-old driver, a Muslim from Montenegro, was arrested and held in custody but has refused to talk. In August, French intelligence detained a 30-year-old man on his way back from Syria who said militants were planning attacks on French concert halls. Prosecutors also said the terrorists used an improved explosive known as TATP, or triacetone triperoxide, which also was used in the 2005 bombings in London and were likely to be homemade with ingredients usually traced by the secret services. French intelligence and security services had been reorganised in the wake of the Charlie Hebdo massacres, which left 16 dead in January. A former senior intelligence officer very familiar with France said he and a lot of French intelligence officials think that after two internal services — the Central Directorate of General Intelligence (RG) and the Directorate of Territorial Surveillance (DST) — were merged, it created a larger, but far weaker, General Directorate for Internal Security. Alain Charret, an expert on France’s surveillance system, said it was hard for the military to be everywhere and for intelligence to predict everything, 'but the reason why it is usually difficult to track people is because one or two people on their own are involved — here, it seems like it was a big group of organized people, so it should have been tracked more easily.' Advertisement

Meanwhile the black Seat Leon used by the terrorists who murdered diners outside the Casa Nostra pizza restaurant and the La Belle Équipe cafe has been found abandoned 20 minutes away in Montreuil with three AK-47s with five full magazines and 11 empty ones.

Paris prosecutor Francois Molins said on Saturday that gunmen armed with automatic weapons pulled up in that model of car before opening fire, killing 15 people and injuring 10.

On the second day after the worst terror attack in French history it has emerged:

French police are hunting for two gunmen on the run after Friday's attacks and an ISIS bombmaker likely to have made the suicide vests

One is known to be 26-year-old Salah Abdeslam, from Brussels, who is accused of renting a Volkswagen Polo used by the suicide bombers who killed 89 people at the Bataclan music venue

A Seat car used in drive-by shootings at two restaurants was found abandoned containing three AK-47s with five full magazines and 11 empty ones

One of Bataclan suspects was found carrying a Syrian passport under the name Ahmed Almuhamed who travelled to France as a migrant through Greece. Ferry tickets reveal he travelled with another man named as Mohammed Almuhamed.

Frenchman Omar Ismaël Mostefai, 29, also named as a Bataclan suicide bomber who was identified by his severed finger. Mostefai's father, a brother and other family members have been held and are being questioned.

Mostefai said to have been radicalised by a Belgian hate preacher of Moroccan descent said to have regularly preached at his mosque

Bataclan survivors claim that one of the four shooters was a woman

Seven people were detained in Belgium linked to the atrocities - five in Brussels district known as a 'den of terrorists'

Ahmed Almuhamed is believed to have taken around a month to travel to France posing as a migrant. He had entered Serbia at Miratovce, having crossed the frontier from Macedonia. The newspaper reported that Almuhamed, applied for asylum in Serbia in Presevo before crossing into Croatia and Austria.

Paris prosecutors confirmed that the suspects, all wearing explosive vests, roamed across the French capital in three teams, perpetrating the 'worst acts of violence' in the country since the Second World War. Fingerprint records show that two of the terrorists had arrived in the EU as refugees through Greece.

A Syrian passport found near the body of one of the gunmen had passed through the Greek island of Leros on October 3.

On October 5 they used their Syrian passports to travel to the port of Piraeus on Mainland Greece before arriving in Serbia on October 7.

The Syrian passport was registered in October in Serbia and Croatia, two of the countries on the corridor crossing the Balkans. The owner was allowed to proceed because he passed what is essentially the only test in place - he had no international arrest warrant against him.

Ahmed, an asylum seeker, was issued with a Syrian passport as he followed the migrants' route through the Balkans, Greece's migration minister said this evening.

Yiannis Mouzalas, junior interior minister for migration, said the 25-year-old was registered on the island of Leros on October 3, left the country on an unknown date and was last recorded in Croatia later that month.

'This is the sole person on which we have received a request from the French police,' he told a news conference.

It is still not yet clear if the Syrian passport is the true identity of the dead bomber. European officials say there is a brisk trade in fake Syrian passports to help people get refugee status in the EU.

Greece's deputy minister in charge of police, Nikos Toscas, said he was 'identified [as a refugee] according to EU rules' as he passed through the country, but did not know if it was checked elsewhere en route to Paris. In all, 129 people were killed in a series of co-ordinated bomb and gun attacks on Friday night. With 99 of the 352 wounded critically ill, the death toll is expected to rise.

Six of the terrorists, believed to be from Islamic State who appear to have formed their own international terror cell, took their own lives, while one was shot dead by police.

The first Jihadi suicide bomber named in connection with the Paris terrorist attacks that left at least 129 people dead was Is Omar Ismail Mostefai, who was identified by his finger.

The digit was found among the carnage of the Bataclan concert hall, where the 29-year-old was one of three men who blew himself up killing 89 men, women and children.

Born on 21 November 1985, in the Paris suburb of Courcouronnes, Mostefai's criminal record shows eight convictions for petty crimes between 2004 and 2010.

He had never been jailed but Paris prosecutor Francois Molins said Mostefai had been picked out as a high-priority target for radicalisation in 2010 He added that Mostefai had 'never been implicated in an investigation or a terrorist association'.

Police have also detained members of his family for questioning. Mostefai's father, a brother and other family members have been held and are being questioned.

PARIS MASSACRE: WHAT WE KNOW SO FAR ABOUT THE DEADLIEST TERROR ATTACK TO HIT EUROPE IN A DECADE At least 129 people are dead, and another 352 injured, after three teams of jihadis struck the Stade de France football stadium, a handful of bars and cafes, and then finally the Bataclan concert hall. FIRST TWO ATTACKS: STADE DE FRANCE The attacks began at 8.17pm GMT at the Stade de France where the French football team was hosting Germany in an international friendly.

The game was being watched by 80,000 spectators, among them was President Francois Hollande who had to be evacuated from the stadium.

The first explosion, a suicide bombing, was at an entrance to the stadium. A suicide bomber approached the gate with a match ticket when he was frisked by a security guard who turned him away.

He backed away from the gate and detonated his vest at about 8.20pm GMT near Gate D of the stadium, killing one other person. A passport with the name Ahmed Almuhamed, 25, from Syria, was allegedly found nearby.

A second suicide bomber, Bilal Hadfi, 20, blew himself up near Gate H several minutes later. No one else was reported killed. Hadfi is said to have fought with ISIS in Syria. THIRD ATTACK: LE PETIT CAMBODGE AND LE CARILLON BAR At 8.25pm GMT a separate team of gunmen arrived in a Black Seat and attacked diners at popular Cambodian restaurant Le Petit Cambodge and Le Carillon bar in the trendy Canal Saint-Martin area of eastern Paris, killing 15. Timeline of events: Eight bombers carried out the devastating attacks on Friday night, leaving 129 people dead and another 352 injured FOURTH ATTACK: LA CASA NOSTRA PIZZERIA AND LA BELLE EQUIPE BAR The same unit then drove about 500 yards to La Casa Nostra pizzeria and opened fire on diners on the terrace of the restaurant, killing at least five people.

From there, the militants drove around a mile south-east – apparently past the area of the Bataclan concert venue – to launch another attack, this time on La Belle Equipe bar in Rue de Charonne. At least 19 people died after the terrace was sprayed with bullets at 8.38pm GMT. The attackers then drove off. FIFTH ATTACK: CAFÉ ‘COMPTOIR VOLTAIRE’ Five minutes later, Ibrahim Abdeslam, 31, set off a suicide vest outside the outside cafe 'Comptoir Voltaire' on the Boulevard Voltaire and close to the Bataclan theatre. He hired a black Seat car used in the attack. SIXTH ATTACK: BATACLAN MUSIC HALL At 8.49pm GMT, the third group (believed to be three men and a woman) armed with AK-47s stormed the Bataclan music hall and began shooting members of the crowd. Survivors claim three blew themselves up and a fourth person was shot dead by police before they could detonate their bomb. SEVENTH ATTACK: NEAR STADE DE FRANCE At around 8.50pm GMT a third blast took place near the Stade de France, this time by a McDonald’s restaurant on the fringes of the stadium. The boom caused terror among spectators who had already been attempting to flee the stadium following the first two explosions. The attacker who detonated his suicide vest was identified as a 20-year-old French man living in Belgium. Tearful members of the public view flowers and tributes on the pavement near the scene of the concert hall massacre on Friday AFTERMATH: On Saturday morning, ISIS claimed responsibility for the attacks across Paris, saying 'eight brothers wearing explosive belts and carrying assault rifles' conducted a 'blessed attack on... Crusader France'.

On Saturday afternoon, three people travelling in a grey VW Polo were arrested at the French/Belgian border when police traced the car after it was sighted outside the Bataclan theatre at the time of the attacks.

One of the Stade de France suspects was found carrying a Syrian passport under the name Ahmed Almuhamed who travelled to France as a migrant through Greece on October 3. Ferry tickets reveal he travelled with another man named as Mohammed Almuhamed.

However, the French minister of justice Christiane Taubira said on Sunday that the passport under the name Ahmed Almuhamed was a fake.

Omar Ismaël Mostefai, 29, from Courcouronnes, Paris was also named as a Bataclan suicide bomber. The petty criminal and father-of-one was known to police as a radical and had travelled to Algeria and Syria. He was identified by the fingerprint on a severed digit found after he detonated his suicide belt.

Mostefai is believed to have been radicalised by a Belgian hate preacher of Moroccan descent claimed to have regularly preached at his mosque in South West France. His father, a brother and other family members have been held and are being questioned.

The black Seat Leon used by the terrorists who murdered diners outside the Casa Nostra pizza restaurant and the La Belle Équipe cafe was found abandoned 20 minutes away in Montreuil with a cache of weapons inside.

Seven people were detained in Belgium linked to the atrocities - three at the border and four in Brussels. Five are from the Molenbeek area of Brussels known as a 'den of terrorists'.

Iraqi spies warned the West of an ISIS suicide bomber threat the day before the Paris atrocities, it was revealed on Sunday, as more details of major intelligence failures began to emerge. The US-led coalition in Syria was apparently told by Iraqi security sources that 24 extremists were involved in the terror operation planned in the ISIS capital Raqqa and it would involve 19 attackers including five others including bombmakers and planners. No detail was given of when or where an attack might take place.

It has also emerged that Turkey's authorities foiled a plot to stage a 'Jihadi John revenge attack' in Istanbul - involving a high-profile British jihadist - on the same day as the deadly massacre in Paris.

From as far back as August, France's authorities possessed information that militants were said to be planning attacks on French concert halls after a tip-off was received from a 30-year-old man who was detained on his way back from Syria.

On Sunday night there were 42 people still said to be in intensive care in hospital following Friday's terrorist attacks. LATEST DEVELOPMENTS: French police are still hunting for three gunmen on the run, including Brussels-born Frenchman Salah Abdeslam, and an ISIS bombmaker likely to have made the suicide vests.

An international arrest warrant has been issued for Abdeslam, 26, who is accused of renting a Volkswagen Polo used by the suicide bombers. He is one of three brothers believed to be at the heart of the eight-strong ISIS cell.

It emerged on Sunday night that police found Abdeslam near the Belgian border early Saturday but let him go after he showed them his ID card. Officers pulled over the car being driven by Abdelslam on Saturday morning on the A2 motorway between Paris and Brussels. Two other men were also in the Seat car. At the time, officers in Paris knew that Abdeslam had rented the car used by the killers which had been abandoned near the theatre but the information had not been transmitted to those responsible for conducting the border checks.

His brother Ibrahim, 31, blew himself up in a solo attack outside cafe Comptoir Voltaire after renting a black Seat found abandoned today filled with AK-47s and ammunition. A third sibling, named as Mohamed Abdeslam, has been arrested in the Belgian capital.

On Sunday evening the French defence ministry announced that the country's warplanes had bombed Islamic State's stronghold in Syria's Raqa, destroying a command post and a training camp, the defence ministry said. Ten fighter jets were involved, dropping 20 bombs. Advertisement

This is the remains of one of the suicide bomber who targeted 80,000 fans at the Stade de France during a football match on Friday

At least two of the terrorists is believed to have left Syria, travelled through Turkey and registered as a refugee on the Greek island of Leros on October 3 before continuing his journey northwards eventually arriving in Paris

Place of worship: Mostefai is said to have regularly attended the mosque in Luce, close to Chartres, south-west of Paris, pictured today with president Abdallah Benali and vice president Karim Benay. It is claimed that Mostefai was radicalised by an unnamed Belgian hate preacher who spoke at the mosque

Home: A view of the house where Omar Ismael Mostefai, one of the suicide bombers who took part in the attack on the Bataclan theatre, lived two years ago

Incredible footage shows armed officers swarm on at least one man and force him to kneel down as they detain him on a wall as shocked shoppers look on in the St Jans Molenbeek area of Brussels, Belgium, at around 5pm UK time yesterday. It came as Belgian police made a number of arrests in Brussels hours after the deadly attacks in Paris, after a car seen in the French captial was intercepted at the border

Removed: A car with suspected links to the Paris attacks has been found by police in Montreuil containing a cache of guns and ammunition

Investigators are now investigating claims that he went to Syria last year, and may have spent time with IS terrorists.

PASSPORT FOUND ON BOMBER'S BODY COULD BE AN ISIS FAKE A terrorism expert said today that the passport found on the body of at least one suicide bomber could be fake. ISIS may have asked the bombers to carry bogus or stolen documents belonging to migrants crossing into Europe from Syria. Professor Greg Barton from Deakin University in Australia said: 'It raises questions about whether it is real. 'A suicide attacker will go through a ritual of bathing and praying beforehand. 'They would have known that the documents would not have been atomised by the blast. It could be a way for ISIS to fan the flames of hatred towards migrants. 'Their recruitment would be helped by this suspicion of migrants'. Advertisement

Mostefai's father and 34-year-old brother were arrested on Saturday night, and their homes were searched.

'It's a crazy thing, it's madness,' his brother told French news agency AFP before he was taken into custody.'Yesterday I was in Paris and I saw how this shit went down.'

The brother, one of four boys in the family along with two sisters, turned himself in to police after learning Mostefai was involved in the attacks.

While he had cut ties with Mostefai several years ago, and knew he had been involved in petty crimes, his brother said he had never imagined his brother could be radicalised.

The last he knew, Mostefai had gone to Algeria with his family and his 'little girl', he said, adding: 'It's been a time since I have had any news.I called my mother, she didn't seem to know anything.'

A source close to the enquiry said Mostefai regularly attended the mosque in Luce, close to Chartres, to the southwest of Paris.

He is said to have been radicalised by a Belgian hate preacher of Moroccan descent said to have regularly preached at his mosque.

Among their victims was a 36-year-old British man, Nick Alexander, from Colchester in Essex, who was selling T-shirts at the Bataclan Theatre where 89 music fans were slaughtered.

With much of Europe on high alert yesterday, a Frenchman caused chaos at Gatwick Airport after producing what appeared to be a gun at an easyJet check-in desk. Hundreds of passengers were evacuated after the 41-year-old man fled and threw the 'firearm' into a rubbish bin at the North Terminal following a row with staff.

Jerome Chauris, from Vendome, has been charged with possession of an air rifle and a knife and is due to appear in court on Monday.

Armed police rushed to restrain the man and were said to have shouted 'get down, get down' to nearby travellers.

French fire officer helped an injured man away from the scene of the attack at the Bataclan concert in Paris on Friday night

Survivors began tending to those who had been injured during Friday's atrocity despite the fear of further terrorist attacks

Belgian police arrested three suspects as they tried to cross the border from France on Friday night

The suspects' car, not pictured, was seen near one of the terror sites on Friday before returning to Belgium

GREEKS HAND MIGRANTS TRAVEL PAPERS TO PASS EU BORDERS Greek junior interior minister for migration Yiannis Mouzalas said that Ahmad al Mohammad arrived on the island of Leros on October 3. Mr Mouzalas released a photograph of al Mohammad, which was taken as he was processed by Greek Authorities. He said the 25-year-old was registered 'in accordance with European regulations' and and been allowed to continue his journey as his details did not raise any 'red flags' on any EU security databases. Greek authorities hand travel papers to migrants as long as their fingerprints are not held on an international terror watch list. Mr Mouzalas added: 'This is the sole person on which we have received a request from the French police. But Mouzalas insisted that heightened security concerns should not jeopardise the rights of refugees to safety in Europe. 'There could be more (such jihadists)... are we supposed to toss 100,000 people in the sea? 'Greece and Europe must keep a very fine balance between security and human rights," he said. 'Most of (the attackers) were born and raised in Western countries... they leave Western countries with legal Western passports, go to jihad and return.' Advertisement

If the attack does involve militants who travelled to Europe amid millions of refugees from the Middle East, the implications will be profound.

Poland's prospective minister for European affairs, Konrad Szymanski, said that in light of the attacks, Poland would not comply with an EU plan to accept refugees unless it received 'guarantees of security'.

The attack brought an immediate tightening of borders as Mr Hollande declared a state of emergency and announced renewed border checks. Germany also stepped up border checks.

Belgian authorities conducted raids in Brussels and arrested three people near the border with France after a car with Belgian numberplates was seen close to the Bataclan. Mr Molins said a French national was among the three arrested.

Last week a 51-year-old man arrested in Germany last week with weapons in his car might be linked to the Paris attacks.

A spokesman for Bavarian state police confirmed earlier that firearms, explosives and hand grenades were found when officers stopped a man near the Austrian border on November 5.

Ludwig Waldinger declined to confirm reports by public broadcaster Bayrischer Rundfunk that the man appeared to be en route to Paris when he was arrested.

Responding to questions about the Paris attacks, Bavarian governor Horst Seehofer said: 'In the course of spot checks we had an arrest where there are reasonable grounds to assume that there may be a link to the matter.'

Citing unidentified investigators, Bayrischer Rundfunk reported that documents found during the arrest indicated that the man was from Montenegro and was travelling to Paris. It also reported that the weapons, which it said included an automatic rifle and 1kg of TNT, were professionally hidden inside the body of the car, a VW Golf.

Rainer Wendt, chairman of the German Police Union, said security agencies appeared to have been tipped off that the man was planning to enter Germany.

'It seems it was found that he originally wanted to go to Paris, heavily armed with several different firearms and explosives,' Mr Wendt told German news station n-tv.

'That the French authorities were informed about this is totally clear,' he added. 'From what we know the man is in custody and isn't saying anything, so with that information alone the French authorities seem to have been unable to do much.

'At least the attack couldn't be prevented, despite all the efforts that were surely made.'

Some people tried to escape from the carnage by clambering down the outside of the building

Meanwhile in Paris, distraught relatives and friends of people still missing launched a desperate search for loved ones feared killed. They shared pictures and information with the hashtag 'RechercheParis' – which means 'search Paris' – and it has now spawned its own Twitter accounts and Facebook page. Many of those missing were at the Bataclan concert.

British victim Mr Alexander was with his American friend Helen Wilson when gunman stormed the venue before blowing themselves up. She told how they were forced to lie on the ground – with those who moved, shot.

Mr Alexander was fatally wounded when they tried to make a break for freedom – but someone attracted a gunman's attention and both of them were shot. Helen was left desperately trying to resuscitate him while the terrorists lurked 'in the shadows'.

She said: 'Then he couldn't breathe any more and I held him in my arms and told him I loved him. He was the love of my life.'

As France declared a state of emergency and tightened its borders, it emerged that a catastrophe was averted at the Stade de France, where 80,000 watched a friendly football match between France and Germany.

A security guard frisked one of the attackers as he tried to enter the stadium with a ticket, only to find that he was wearing an explosives vest.

Victims of the gun attack outside La Belle Equipe restaurant on Friday night

A victim is wheeled out of the Bataclan concert hall where Islamic State gunmen mercilessly slaughtered up to 100 fans before blowing themselves up in a series of co-ordinated attacks across the French capital

One of the concert-goers who was rescued from the Bataclan concert hall, where terrorists opened fire - killing innocent people

His plan had been to detonate it on the terraces, triggering a stampede of fans – straight into the path of another bomber outside.

But after being discovered he ran and detonated the bomb outside, killing one other person, a 63-year-old Portuguese man.

At least one of the bombers is a Parisian. French prosecutor Francois Molins said that the attacker, who appears to be the ringleader is from the Courcouronnes suburb, the same district to the south of the capital that spawned the Charlie Hebdo killers

The man, known only as Mr Ismaël, was born November 22, 1985, and had a criminal record, but had never spent time in jail. He had been known to France's security services since 2010 and was on 'Fiche S', their watchlist of known extremists.

He was known as having been radicalised but had never been implicated in a counter-terrorism investigation. 'He was considered a radicalised person and had a security report,' Mr. Mollins said.

But he was not being monitored closely enough to stop him taking part in Friday's monstrous attacks, described by Islamic State, which claimed responsibility, as 'just the start of a storm'.

Professor Anthony Glees, terror expert at the University of Buckingham, said: 'I have no doubt whatsoever that some of the people in this plot will have been infiltrated into France in the guise of asylum-seekers. We worried about it, now we have it. I think this is of enormous significance.'

Other vital clues were also missed. More than a week ago, a heavily-armed suspect was stopped in Germany on his way to Paris. Hidden in his car, police found a terrifying arsenal, including seven Kalashnikov assault rifles and seven hand grenades. The destination programmed into his satnav system was Paris but officers failed to alert anti-terror police.

A second attacker at the stadium is believed to have been as young as 15. Supporters of both France and Germany were held in the stadium until they could be safely evacuated

At least eight militants, all wearing suicide vests, brought unprecedented violence to the streets of the French capital in the bloodiest attack in Europe since the Madrid train bombings in 2004

An armed officer stands outside the theatre, which is just 200 metres from the Charlie Hebdo offices

Paris prosecutor Francois Molins said of the eight attackers: 'We have to find out where they came from... and how they were financed.'

Mr Molins confirmed that three Frenchmen arrested in Belgium yesterday were linked to the attacks. Police are focusing their investigation on two vehicles. One was a black Seat used by gunmen at two of the attacks and has yet to be found.

The other is a black Volkswagen Polo with Belgian registration plates found at the Bataclan. This was rented to a Frenchman living in Belgium who was identified in a spot check by police on Friday morning as he drove across the Belgian border with two others.

Investigators believe these three may be another team of attackers who managed to flee the scene.

As details of the killers' identities began to emerge yesterday, Corinne Narassiguin, spokesman for France's ruling Socialist party, admitted: 'Obviously there was a failure of intelligence so we'll have to look into this.' She told the BBC that the French government had recently voted through new measures to improve surveillance of terror suspects, and 2,000 new posts are being created, but added: 'Unfortunately all these measures are not yet fully operational.

In May this year, The Mail on Sunday revealed the concerns of security analysts that Islamic State extremists were being smuggled into Europe among refugees crossing the Mediterranean. Yesterday's discovery appeared to confirm those worst fears.

Prosecutors also said the terrorists used an improved explosive known as TATP, or triacetone triperoxide, which also was used in the 2005 bombings in London.

Expressions of sympathy echoed around the world as France struggled to come to terms with the second major terror outrage on its soil in 12 months.

US President Barack Obama said today the terror attacks in Paris were an 'attack on the civilised world' and that 'the skies have been darkened' by the incidents.

Mr Obama is pledging US solidarity with France in the effort to hunt down the perpetrators and bring them to justice.

He made the comments in a meeting with Turkish President Recep Tayyip Erdogan on the sidelines of the G20 economic summit featuring leading industrial and emerging-market nations.

Mr Erdogan says there will be a 'strong message' on fighting terrorism coming out of the summit.

Mr Obama also said the US stands with Turkey and Europe in the effort to reduce the flow of migrants. He says the US and Turkey will redouble efforts to resolve Syria's civil war.

Tension: Armed police prepare their assault on the terrorists at the Bataclan concert hall, where 80 people were slaughtered on Friday

Mourners leave floral tributes at the main entrance of Le Carillon restaurant which was targeted in a series of terrorist attacks in Paris

French special forces evacuate people, including an injured man holding his head, as people gather near the Bataclan concert hall following fatal shootings

Around 150 people gathered in Trafalgar Square in central London today as they showed support to the French following the string of terror attacks carried out in Paris last night, in which 129 innocent people were killed

A woman is comforted as she breaks down outside the Carillon cafe and the Petit Cambodge restaurant where victims were gunned down

Thousands of people have taken to the streets of Paris to pay tribute to the victims of last nights' horrific attacks

Women leave candles at the French embassy during a vigil in Ottawa, in Cananda, a day after the terror attacks in France

Prime Minister David Cameron said: 'The events in Paris are the worst acts of violence in France since the Second World War, the worst terrorist attack in Europe for a decade, a horrifying and sickening attack. Our hearts go out to the French people and to all those who lost loved ones. Today the British and French peoples stand together as we have so often before in our history when confronted by evil.'

And writing in The Mail on Sunday, London Mayor Boris Johnson promised that the 'narcissistic death cult' of Islamic State would be crushed. 'There can be no compromise with this twisted ideology,' he writes. 'No room for common ground because their ambition is so wholly nihilistic. They must be defeated – and they will be defeated.'

Throughout yesterday the streets of the French capital were eerily quiet. The attacks were the worst in Europe since the 2004 Madrid train bombings which killed 191.

French president Francois Hollande declared the atrocities an 'act of war' by IS and vowed to 'mercilessly' strike back against the jihadi 'barbarians'.

The French government stepped up its participation in the military air campaign in Syria at the end of September. On October 8, it conducted a strike against militants in Raqqa, Syria, apparently targeting Salim Benghalem, a Frenchman fighting for IS who was one of the group's most famous Western executioners. His popularity among French extremists was almost parallel to that of Jihadi John.

The distressing scenes in the French capital have sent shockwaves across social media, with a number of campaigns launched to help people who were unable to get safely home

An armed policeman stands guard near the scene of the shooting in Paris on Friday night

Crossfire: Sparks fly as bullets from the terrorists' machine guns ricochet off the bonnet of a parked car

Missing: Gaelle Messager, left, Isabelle Merlin, centre, and Maud Serrault, right, are all feared dead by loved ones after the attacks

Dead: Marie Mosser, left, Francois-Xavier Prevost, centre, and Lola Salines, right, were named as three of the victims of the terror attack

Questions for French security services after it emerges three major intelligence failures may have let the killers get through

Vital clues were missed that could have averted the Paris atrocities, it was feared last night as it was revealed that:

A heavily armed suspect was stopped on his way to the French capital more than a week ago but German police who uncovered an arsenal of weapons in his car did not tell anti-terror chiefs.

At least one of the terrorists was a Parisian who had been on a terror watch list for five years, but was not being monitored closely enough to be stopped before he took part in the murderous attack.

Greek authorities believe that two of the gunmen sneaked into Europe posing as a refugee from Syria – heightening fears that not enough security checks are being carried out on migrants.

As details of the killers' identities began to emerge yesterday, Corinne Narassiguin, spokeswoman for France's ruling Socialist Party, admitted: 'Obviously there was a failure of intelligence.'

Vital clues were missed that could have averted the Paris atrocities, it was feared last night as the investigation continues

Greek authorities believe that two of the gunmen sneaked into Europe posing as a refugee from Syria, with one registering in Leros on October 3

She said the French government had recently voted through new measures to improve surveillance of terror suspects, with 2,000 new posts being created, but added: 'Unfortunately all these measures are not yet fully operational.'

French intelligence and security services had been reorganised in the wake of the Charlie Hebdo massacres, which left 16 dead in January. It emerged that the brothers behind the killings, Cherif and Said Kouachi, were well known to the authorities and were being watched – but surveillance was called off just six months before they launched their attack.

Since then counter-terrorist forces say they have thwarted several plots and in August passengers overpowered a gunman who opened fire on a high-speed train bound for Paris.

But it is feared there was a fatal breakdown in communication between European law enforcement agencies earlier this month. During a routine check of a VW Golf on the Salzburg to Munich autobahn on November 5, police discovered a 'professionally built' secret compartment crammed with weaponry and munitions.

At least one of the terrorists was a Parisian who had been on a terror watch list for five years, but was not being monitored closely enough to be stopped before he took part in the murderous attack. Above, French fire brigade members aid an injured individual near the Bataclan concert hall

Victims of the attack lay on the pavement outside La Bell Equipe restaurant. As details of the killers' identities began to emerge yesterday, Corinne Narassiguin, spokeswoman for France's ruling Socialist Party, admitted: 'Obviously there was a failure of intelligence'

'An inspection of the glove compartment revealed a revolver,' said a security source. 'The compartment itself was damaged and behind it could be seen something sticking out – it was the barrel of an AK-47 hidden in the engine compartment.'

Eventually discovered in the hideaway built into the car bodywork and welded over were a further seven AK-47 assault rifles of the type used in the Parisian bloodbath, complete with full magazines. Five pistols, seven hand grenades, fuses, detonators and a revolver completed the mini arsenal. The destination programmed into the driver's sat-nav was Paris. The 51-year-old driver, a Muslim from Montenegro, was arrested and held in custody but has refused to talk.

The country has long been a recruiting ground for Islamic State (IS) terrorists in the Balkans and some 300 individuals there are believed to be under surveillance. But although the arrest by Bavarian police was reported to Interpol, details were not given to anti-terror specialists in Berlin who may have been able to join up the dots with their French counterparts and so prevent the Paris massacre.

'There will be hell to pay about this in the coming days,' said an intelligence source.

A mourner pays his respects outside the Le Carillon restaurant, the site of one of the attacks

Bavaria's state premier Horst Seehofer said on Saturday: 'We have an arrest where there is reasonable expectation that it may be to do with the things that happened in Paris.'

Meanwhile, at least one of the terrorists who struck on Friday night had been on 'Fiche S', a watch list of known extremists.

One of the gunmen who stormed the Bataclan concert hall was identified by his fingerprints as a 29-year-old named only as a Mr Ismaël. He had a criminal record, lived in the southern Paris suburb of Courcouronnes, and had been known to the intelligence agencies since 2010, French media said.

The cell responsible for the massacre travelled to IS heartlands for training, while at least one member re-entered Europe last month via a Greek island among refugees fleeing the chaos of Syria.

Three alleged accomplices were arrested in Brussels last night over the plot, but it is likely to be seen by many as too little, too late.

Sweet-natured: Nick Alexander, left and right at the Paris venue, was working at the venue that was attacked

Tribute: Nick's girlfriend, Polina Buckley, posted this heartbreaking message after hearing of his death

Nick Alexander's girlfriend Polina Buckley, understood to be from New York, was overcome with grief as she sat near a makeshift vigil outside the consulate of France in Manhattan