Islamic State Mosque Blast Kills 31 During Friday Prayers

Islamic State militants killed 31 people and wounded 170 in a suicide bombing at a Shiite mosque in Islamabad during Friday prayers.Prime Minister Shehbaz Sharif condemned the massacre as authorities arrested several relatives of the bomber during overnight raids in northwestern Pakistan.The attack represents the deadliest terrorist act in the capital since 2008 and follows a series of violent incidents involving militants based in Afghanistan.