The UK security services are examining an Islamic State murder video featuring a man and a young boy with British accents.
(Above: still image from IS propaganda video)
The online video shows five men, accused of spying for Britain, being shot dead by five extremists, while threats are made to invade the UK.
In the video, an extremist with a British accent, who kills one of the prisoners, waves a gun and criticises David Cameron for the RAF bombing campaign against IS in Iraq and Syria.
The prisoners wearing orange jumpsuits “confess” to filming and photographing sites in Raqqa, the capital of IS’s self-declared caliphate.
After they are killed, the video shows a boy, who appears to be four or five, dressed in military fatigues and wearing a black headband.
Speaking with what sounds like a British accent, the child points into the distance and says in English: “We are going to go kill the kaffir (non-believers) over there.”
The film is similar to previous videos showing the British extremist known as Jihadi John, who was killed in a US drone strike in November.
The extremist, whose real name was Mohammed Emwazi, appeared in videos showing the murders of Britons David Haines and Alan Henning and US journalists James Foley and Steven Sotloff.
In the latest video, the jihadi refers to British air strikes against IS, saying: “How strange it is that a leader of a small island threatens us with a handful of planes.
“One would have thought you would have learned the lessons of your pathetic master in Washington and his failed campaign against the Islamic State. But it seems like you, just like your predecessors (Tony) Blair and (Gordon) Brown, are just as arrogant and foolish.
“In fact, David, you are more of an imbecile. Only an imbecile would dare to wage war against a land where the law of Allah reigns supreme and where the people live under the justice and security of the sharia. Only an imbecile would dare to anger a people who love death the way you love your life.”
The jihadi goes on to say that IS is “here to stay” and will invade the UK and rule under sharia law.
The five victims’ identities have not been verified, but they have been named in reports as Ha’il Marwan Abdul Razaq, 40, Ubi Muhammad Abdul Ghani, 26, Faisal Hamud al-Ja’far, 25, Umaar Hamud al-Ja’far, 30, all from Syria, and Mahyar Mahmud al-Uthmaan, 31, whose origin is unclear.
Whitehall sources said the video was an attempt to deflect attention from recent military setbacks IS has faced, like the loss of the Iraqi town of Ramadi to state forces.
A Foreign Office spokesman said: “We are aware of the video and are examining its content.”