Britain examining latest purported Islamic State video

Europol said that, after the Paris attacks, there is “every reason to expect that Isis will undertake a terrorist attack somewhere in Europe again… meant to cause mass casualties amongst the civilian population”.

The Islamic State militant group is plotting “Mumbai-style” terrorist attacks in Europe – France in particular – according to the European Union’s police agency Europol.

Wainwright, who was unveiling the findings of a new Europol report on how ISIS conducts its business, added that “all national authorities are working to prevent that from happening”.

Rob Wainwright was speaking as Europol opened its new counter-terrorism centre in The Hague.

Hours before the report was issued, a new video was released by the militants, celebrating the killers who carried out the November attacks in Paris.

The Europol report said the Islamic State represents “the most significant terrorist threat in over 10 years” to face Europe.

Entitled “Changes in modus operandi of Islamic State terrorist attacks”, the study found the Paris attacks appear to indicate a shift towards a broader strategy of ISIS “going global”.

Security personnel who discovered the video believe that the video was the most recent one made before the Parris attacks.

The video seemingly aims to show that the Paris attackers, some of whom had French and Belgian passports, had trained in ISIS-held territory before killing 130 people in France.

Salah Abdeslam, who fled Paris on the night of the attacks and remains at large, is not in the footage, but his brother Brahim, who blew himself up at a cafe, is shown at a makeshift shooting range.

The report played down fears that jihadists were smuggling themselves in Europe but warned that many new arrivals were vulnerable to radicalisation or recruitment with evidence that extremist recruiters were specifically targeting refugee centres.

“We are now examining this latest Daesh propaganda video – another desperate move from an appalling terrorist group that is clearly in decline”, a government spokesman told the Guardian.

A picture of British Prime Minister David Cameron was accompanied by the words in English: “Whoever stands in the ranks of kufr [unbelievers] will be a target of our swords”.

France has been under a state of emergency ever since the Paris attacks happened back in November.

A man purported to be the reclusive leader of the militant Islamic State Abu Bakr al-Baghdadi has made what would be his first public appearance at a mosque in the center of Iraq’s second city, Mosul, according to a video recording posted on the Internet.