A frantic manhunt is underway for a suspected Islamic State jihadi hiding in Calais and plotting to sneak into Britain to launch a terrorist attack.

French police have been scouring the port for the alleged fanatic, who left the Middle East at the end of last month and travelled overland to Europe.

But he has evaded officers, possibly by hiding among the 3,500 migrants living in the ‘Jungle’ camp on the outskirts of the town.

Location: A Syrian man suspected of being an member of ISIS is sleeping rough in the 'Jungle' migrant camp in Calais (pictured} in the hope of sneaking into the United Kingdom to commit acts of terror

Thousands of refugees are currently living in camps in and around Calais, with some of them causing chaos in recent months by attempting to sneak into UK-bound cars and lorries, or otherwise risk their lives storming the Eurotunnel and walking along the tracks to southern England.

The man’s aim is to commit terrorist acts in the UK, French newspaper La Voix du Nord reported.

'An Islamic State combatant believed to be in Calais is being actively hunted by the authorities,' La Voix du Nord's report read.

'He left Syria at the end of August and hopes to reach Britain where he intends to commit terrorist acts... He is the subject of most wanted person notice and is considered a threat to state security.'

Thousands of refugees are currently living in camps in and around Calais (pictured), with some of them causing chaos in recent months by attempting to sneak into UK-bound cars and lorries, or otherwise risk their lives storming the Eurotunnel and walking along the tracks to southern England [file image]

The suspect is believed to have left ISIS-held regions of Syria (pictured) late last month and travelled overland to northern France. Officials believe he is now planning to enter the UK to commit acts of terror

The man has been classified as being a type-S criminal, one who is considered a potential threat to the state.

The police dossier includes a photo, a description, details of his alleged crimes and instructions to officers about his potential risk to others, the paper said.

Officers have been ordered to place the unnamed man under arrest and to proceed with caution.

There has long been concern that IS jihadists might attempt to smuggle themselves into Britain through Calais to launch atrocities.

Up to 40 French detectives from an elite unit have previously been reported to be based at Coquelles close to Calais to monitor migrants – preventing infiltration by jihadis and fighting people-smuggler gangs who stow migrants away on ferries and trains to the UK.

The officers are part of the Brigade Mobile de Recherche, which liaises with intelligence agencies.

Authorities have previously insisted that they are successfully stopping suspected terrorists.

Speaking in May, a spokesman for the Calais local government said: ‘There is full and complete vigilance in Calais with regard to threat by jihadists or other criminal networks with potential involvement in people smuggling.’

IS USE AYLAN AS PROPAGANDA Islamic State thugs are using a graphic image of Syrian toddler Aylan Kurdi’s body to threaten would-be refugees. The fanatics published a photo of the three-year-old washed up on a Turkish beach – far worse than the one pictured right – in the latest issue of its English language magazine Dabiq. The picture is accompanied by the headline: ‘The danger of abandoning the land of Islam.’ The article warns refugees planning to leave IS’s self-declared caliphate that they would be committing a ‘major sin’. It adds: ‘Sadly some are willing to risk the lives and souls of those whom they are responsible to raise, sacrificing many during dangerous trips to the lands of the war-waging crusaders.’ Thousands of refugees have fled areas under IS control after jihadists imposed a brutal rule of mass killings, torture, slavery and rape. But the article claims Muslim children growing up in the West will be in greater peril than those who stay – coming under the ‘constant threat of fornication, sodomy, drugs and alcohol’. Advertisement

As well as the migrants in the Jungle camp, there are 120 women and children in sheltered accommodation at a former children’s summer camp nearby.

An estimated 1,500 more migrants, mostly from Africa and the Middle East, are living on wasteland close to the motorways leading to the ferry port.

As well as attempting to smuggle themselves in on lorries, many make repeated attempts to break into the Eurostar station at the French end of the Eurotunnel.

At one point in the summer, stowaways on trucks were being caught at the rate of 90 an hour.

Ukip defence spokesman Mike Hookem said news of the manhunt should act as a warning.

He said: ‘IS themselves warned in March that they would “flood” Europe with fighters posing as migrants and the open border policy is a gift to these terrorists who would destroy our way of life.

'I hope this is a wake-up call and we can now start acting to stop this huge security threat.’

There are currently 3,500 migrants of Asian and African origin sleeping rough at an approved camp on the outskirts of Calais and 120 women and children are in sheltered accommodation at a former children's summer camp nearby.

Another 1500 migrants are living at various locations on wasteland close to the motorways leading to the ferry port.

They make nightly attempts to break into the Eurostar station at the French end of the Eurotunnel.

Danish police last night gave up trying to stop the massive influx of migrants trying to travel through their country to Sweden.