'British' Islamic State Militant Threatens UK

Video has emerged purporting to show a masked Islamic State militant with a British accent threatening the UK and calling David Cameron an "imbecile". In the footage, five men of Middle Eastern appearance and wearing orange jumpsuits, who IS said were British spies, were shot dead. A child, who also apparently spoke with a UK accent, later appeared in the video wearing an IS headband and in a camouflage outfit.