Cairo: Islamic State militants in Libya shot and beheaded groups of captive Ethiopian Christians, a videopurportedly from the extremists showed Sunday. The attack widens the circle of nations affected by the group's atrocities while showing its growth beyond a self-declared caliphate in Syria and Iraq.

The release of the 29-minute video comes a day after Afghanistan's president blamed the extremists for a suicide attack in his country that killed at least 35 people and underscores the chaos gripping Libya after its 2011 civil war and the killing of dictator Muammar Gaddafi.