Isis militants have released a video purporting to show the killing of five men they claim were spying for Britain, accompanied by a message taunting Prime Minister David Cameron for challenging the “might” of the extremist group.
The Foreign Office said it was studying the contents of the 10-minute film, in which a man speaking with a British accent threatens attacks in the UK.
A boy, also apparently speaking with a British accent, appears in the video — which has not been independently verified — talking about killing “unbelievers”.
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