Islamic State extremists released a video showing the beheading of British aid worker David Haines, who was abducted in Syria last year, and British Prime Minister, David Cameron late on Saturday condemned his slaying as "an act of pure evil."
Cameron confirmed Haines' death in a statement posted on his official Twitter account, after the British Foreign Office had said earlier that it was "working urgently to verify the video." Haines is the third Westerner beheaded in recent weeks by the Islamic State group, which has seized vast swaths of territory in Syria and Iraq.
The latest two-minute-27-second video, which shows Haines being killed by a masked militant, is titled "A Message to the Allies of America."
The executioner, who speaks in English with an apparently British accent, blames Cameron for joining forces with the United States, which has said it is at "war" with the jihadists and launched air strikes against them in Iraq.
