A video reportedly released Sunday by the Islamic State group shows the execution of five prisoners identified as British spies.<br />Narrated by a masked gunman speaking British-accented English, the 10-minute clip came as an explicit challenge to U.K. Prime Minister David Cameron.<br />“This is a message to David Cameron,” the man says in the video.<br />“How strange it is that a leader of a small island threatens us with a handful of planes,” he says, mocking British military efforts to hobble the militant group’s advances in Iraq and Syria.<br />In the video, five men are depicted kneeling in orange jumpsuits before masked gunmen.<br />After being accused of spying for Britain, they each deliver a confession in Arabic.<br />They report hailing from Syria and Libya.<br />At the end of the video, each is shot in the head.
