Theresa May is expected to raise UK concerns over the leaking of intelligence about the Manchester Arena bomb attack to the US Press when she meets President Donald Trump today.

British ministers have voiced their anger to American counterparts after photographs apparently showing bloodstained fragments from the concert bomb were published in the New York Times.

Suicide bomber Salman Abedi (22) detonated an improvised explosive device killing 22 people, including himself, and injuring up to 64. Islamic State claimed responsibility for the attack.

The pictures appeared a day after the bomber's name was briefed to the US media against the wishes of Greater Manchester Police, and just hours after Home Secretary Amber Rudd issued a plea to US authorities not to leak material about the atrocity.

The disclosure is regarded as "completely unacceptable" by Britain, both because of the distress it may cause families of those killed or injured and because of the risk it could complicate ongoing investigations.

A Whitehall source said: "We are furious. This is completely unacceptable."

The new pictures show torn scraps from a blue Karrimor rucksack as well as screws and nuts used as shrapnel and a metal item which the newspaper suggests could have been part of the bomb's detonator.

The paper described them as "law enforcement images" but did not make clear how they had been obtained.

The Home Secretary said she did not believe that the Americans had compromised the investigation. But she described the leaks as "irritating".

It also emerged yesterday that troops will not be back on the streets of Northern Ireland - despite the Prime Minister's announcement that the military will be deployed in the wake of the attack.

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Pic: David Young/PA Wire PA A woman looks at flowers in St. Ann's Square, close to the Manchester Arena where a suicide bomber killed 22 people leaving a pop concert at the venue on Monday night. PA A silent vigil took place in Belfast city centre in memory of the victims of the bomb attack in Manchester. Picture By: Arthur Allison. Pacemaker Press Belfast 23-05-2017: A silent vigil took place in Belfast city centre tonight in memory of the victims of last night's bomb attack in Manchester. Picture By: Arthur Allison. Pacemaker Press Belfast 23-05-2017: A silent vigil took place in Belfast city centre tonight in memory of the victims of last night's bomb attack in Manchester. Picture By: Arthur Allison. Some of the people who gathered at the War memorial in Derry to express their solidarity with people of Manchester. Picture Martin McKeown. Inpresspics.com. 23.05.17 Some of the people who gathered at the War memorial in Derry to express their solidarity with people of Manchester. Picture Martin McKeown. Inpresspics.com. 23.05.17 Some of the people who gathered at the War memorial in Derry to express their solidarity with people of Manchester. Picture Martin McKeown. Inpresspics.com. 23.05.17 People gather for a vigil outside Belfast City Hall, after a 23-year-old man was arrested in connection with the Manchester concert bomb attack. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. The attack killed 22 people, including children, and injured dozens more in the worst terrorist incident to hit Britain since the July 7 atrocities. See PA story POLICE Explosion. Photo credit should read: Michael McHugh/PA Wire PA People gather for a vigil outside Belfast City Hall, after a 23-year-old man was arrested in connection with the Manchester concert bomb attack. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. The attack killed 22 people, including children, and injured dozens more in the worst terrorist incident to hit Britain since the July 7 atrocities. See PA story POLICE Explosion. Photo credit should read: Michael McHugh/PA Wire PA People gather for a vigil in Albert Square outside Manchester Town Hall in Manchester after attack at concert. Photo credit should read: Joe Giddens/PA Wire PA Members of the public gather to attend a candlelit vigil, to honour the victims of Monday evening's terror attack, at Albert Square on May 23, 2017 in Manchester, England. (Photo by Jeff J Mitchell/Getty Images) Getty Images People from Manchester Sikh Community carry "I love MCR" banners as they arrive to attend a vigil in Albert Square in Manchester, northwest England on May 23, 2017, in solidarity with those killed an injured in the May 22 terror attack at the Ariana Grande concert at the Manchester Arena. Twenty two people have been killed and dozens injured in Britain's deadliest terror attack in over a decade after a suspected suicide bomber targeted fans leaving a concert of US singer Ariana Grande in Manchester. British police on Tuesday named the suspected attacker behind the Manchester concert bombing as Salman Abedi, but declined to give any further details. / AFP PHOTO / Ben STANSALLBEN STANSALL/AFP/Getty Images AFP/Getty Images A couple embrace under a billboard in Manchester city centre, Tuesday May 23, 2017, the day after the suicide attack at an Ariana Grande concert that left 22 people dead as it ended on Monday night. (AP Photo/Kirsty Wigglesworth) AP BERLIN, GERMANY - MAY 23: Flowers lay in shape of a heart in front of British Embassy on May 23, 2017 in Berlin, Germany. An explosion occurred at Manchester Arena as concert goers were leaving the venue after Ariana Grande had performed. Greater Manchester Police are treating the explosion as a terrorist attack and have confirmed 22 fatalities and 59 injured. (Photo by Steffi Loos/Getty Images) Getty Images Flowers are left in St Ann's Square, Manchester, the day after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert in Manchester. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Martin Rickett/PA Wire PA Retail staff hug each other after being evacuated from the Arndale Centre shopping mall in Manchester, northwest England on May 23 AFP/Getty Images Saffie Rose Roussos, (8) was killed in the attack. Collect/PA Wire PA First victim to be named - Georgina Callander. She is pictured with Ariana Grande in 2015. Pic: Instagram Georgina.Bethany Tributes left outside St Ann's Church in Manchester, the morning after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert, at Manchester Arena. PA Tributes left outside St Ann's Church in Manchester, the morning after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert, at Manchester Arena. PA Police evacuated the Arndale Centre on May 23, 2017 in Manchester, England. Getty Images A girl wearing a t-shirt of US singer Ariana Grande carrying balloons from the Ariana Grande concert AFP/Getty Images MANCHESTER, ENGLAND - MAY 23: Armed police patrol the Arndale Shopping Centre after the terrorist attack, May 23, 2017 in Manchester, England. An explosion occurred at Manchester Arena as concert goers were leaving the venue after Ariana Grande had performed. Greater Manchester Police are treating the explosion as a terrorist attack and have confirmed 22 fatalities and 59 injured. (Photo by Christopher Furlong/Getty Images) Getty Images People look out of the windows of a building opposite the Arndale Centre as the shopping mall is evacuated in Manchester, northwest England on May 23, 2017. Twenty two people have been killed and dozens injured in Britain's deadliest terror attack in over a decade after a suspected suicide bomber targeted fans leaving a concert of US singer Ariana Grande in Manchester. / AFP PHOTO / Ben STANSALLBEN STANSALL/AFP/Getty Images AFP/Getty Images Manchester United's Wayne Rooney stands alongside team-mates for a minute silence in memory of the victims of the Manchester terror attack during the final training session at the AON Training Complex in Carrington, ahead of the Europa League Final against Ajax. PA Prime Minister Theresa May addresses the media in Downing Street, London, after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert in Manchester. PA A woman wearing a T-shirt of US singer Ariana Grande near the Manchester Arena in Manchester AFP/Getty Images Ariana Grande concert attendees leave the Park Inn Hotel where they were given refuge after last nights explosion at Manchester Arena on May 23, 2017 in Manchester, England. Getty Images Armed police close to the Manchester Arena, the morning after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert in Manchester. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Danny Lawson/PA Wire PA Screen grabbed image taken from the Twitter feed of Ariana Grande after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving her pop concert in Manchester. PRESS ASSOCIATION Photo. Issue date: Tuesday May 23, 2017. Some 59 people were also injured in the blast when the attacker detonated an improvised explosive device at the Manchester Arena. See PA story POLICE Explosion. Photo credit should read: Ariana Grande/Twitter/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. PA Mother Amy Trippitt (right) and her daughter Grace, who attended the concert at Manchester Arena last night, leave the Park Inn hotel in the city the morning after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving the pop concert. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Danny Lawson/PA Wire PA Mother Amy Trippitt and her daughter Grace, who attended the concert at Manchester Arena last night, leave the Park Inn hotel in the city the morning after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving the pop concert. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Danny Lawson/PA Wire PA Police close to the Manchester Arena the morning after a terrorist attack at the end of a concert by US star Ariana Grande left 22 dead. PA PA Greater Manchester Police chief constable Ian Hopkins speaks to the media in Manchester where he said that the death toll from the Manchester bomb attack has risen to 22 with 59 injured. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Peter Byrne/PA Wire PA Police forensic investigators walk along a bridge linking Victoria Station with the Manchester Arena where a suspected terrorist attack at the end of a concert by US star Ariana Grande left 19 dead. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Danny Lawson/PA Wire PA Fan leaves the Park Inn hotel in central Manchester, England, Tuesday, May 23, 2017. Over a dozen people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira) AP BEST QUALITY AVAILABLE Picture taken with permission from the twitter feed of @Zach_bruce of people running through Manchester Victoria station after an explosion at Manchester Arena. PRESS ASSOCIATION Photo. Issue date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: @Zach_bruce/PA Wire NOTE TO EDITORS: This handout photo may only be used in for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder. PA Emergency services at Manchester Arena after reports of an explosion at the venue during an Ariana Grande gig. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Peter Byrne/PA Wire PA Emergency services at Manchester Arena after reports of an explosion at the venue during an Ariana Grande gig. [Photo: Peter Byrne/PA Wire] PA FILE - In this Aug. 28, 2016 file photo, Ariana Grande arrives at the MTV Video Music Awards in New York. Police say there are "a number of fatalities" after reports of an explosion at an Ariana Grande concert at Manchester Arena in northern England on Monday, May 22, 2017.. (Photo by Chris Pizzello/Invision/AP, File) Chris Pizzello/Invision/AP A fan is comforted as she leaves the Park Inn hotel in central Manchester, England Tuesday May 23 2017. Over a dozen people were killed in an explosion following a Ariana Grande concert at the Manchester Arena late Monday evening. (AP Photo/Rui Vieira) AP A fan leaves the Park Inn hotel in central Manchester, Britain, Tuesday, May 23 2017. An apparent suicide bomber set off an improvised explosive device that killed over a dozen people at the end of an Ariana Grande concert on Monday, Manchester police said Tuesday. (AP Photo/Rui Vieira) AP Fans leave the Park Inn hotel in central Manchester, England Tuesday May 23 2017. An apparent suicide bomber set off an improvised explosive device that killed over a dozen people at the end of an Ariana Grande concert on Monday, Manchester police said Tuesday. (AP Photo/Rui Vieira) AP Armed police (left) at Manchester Arena after reports of an explosion at the venue during an Ariana Grande gig. PRESS ASSOCIATION Photo. Picture date: Monday May 22, 2017. See PA story POLICE Explosion. Photo credit should read: Peter Byrne/PA Wire PA Flowers left close to the Manchester Arena, the morning after a suicide bomber killed 22 people, including children, as an explosion tore through fans leaving a pop concert in Manchester. PRESS ASSOCIATION Photo. Picture date: Tuesday May 23, 2017. See PA story POLICE Explosion. Photo credit should read: Danny Lawson/PA Wire PA / Facebook

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Whatsapp Saffie Roussos (8) and Georgina Callander (18) who died in the Manchester Arena terror attack

Almost 1,000 military personnel were being deployed around the country yesterday, including to key sites such as Parliament, Buckingham Palace and Downing Street, after the official terror threat level was raised to critical, indicating that a further attack may be imminent.

But PSNI Chief Constable George Hamilton has insisted there is no need for him to deploy the Army in Ulster to deal with the increased terrorist threat in the wake of the atrocity.

He insisted there was "absolutely no requirement" for a similar response here.

"It would be disproportionate. It would be unnecessary," he said. "I'm not going to make a bid for military resources on to the streets of our post-conflict society just because everyone else has the need to do that."

In a day of dramatic developments, a man was arrested at an address in Nuneaton, Warwickshire, following searches linked to the Manchester Arena suicide bombing.

It brings the total arrests to six men and one woman, all of whom are in custody and being questioned by police.

Abedi's father, Ramadan Abedi, was arrested in the Libyan capital Tripoli along with his brother Hashim, who Libyan security forces said was "aware of all the details" of the attack.

Ramadan Abedi had earlier claimed his son was innocent, saying: "We don't believe in killing innocents. This is not us."

A spokesman for the Libyan authorities told BBC2's Newsnight that one of the killer's final acts before the murders was to ring his mother.

The spokesman said: "His brother felt there was something going on there in Manchester and he thought his brother would do something like bombing or attack. So after that, he told us: 'Having internet, I see the attack in Manchester and I knew that's my brother'."

The spokesman added that Libyan authorities were aware of Abedi going to the capital of Tripoli on April 18 and it is believed he stayed for two or three weeks.

He revealed that Abedi's younger brother Hashim had been investigated for about a month and a half over suspicions that he was linked to Isis.

"We were not quite sure about this, but when we arrested and we asked him, he told us: 'I have ideology with my brother'. Hashim told us: 'I know everything about my brother, what he was doing there in Manchester'."

On the Belfast Islamic Centre Facebook page, a spokesman said they were "shocked and horrified" at the attack. They said such groups "work in cult-like secrecy, often via the internet; few of us will ever meet anyone with these sort of sympathies".

Belfast Telegraph