"White House condemns ISIS video that purportedly shows killing of Ethiopian Christians in Libya"- Jared Austin 

The White House Sunday evening condemned a video purportedly showing a mass execution of Ethiopian Christians in Libya by the Islamic State. 

In the video released Sunday, Islamic State militants in Libya shot and beheaded groups of captive Ethiopian Christians. 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. 

Iraqi troops backed by Shiite militias and U.S.-led airstrikes managed to dislodge the Islamic State group from the northern city of Tikrit earlier this month. But the troops have struggled against the militants in Anbar, which saw some of the heaviest fighting of the eight-year U.S. military occupation that ended in 2011.