Philippine friendly fire airstrikes kill 11 troops

Philippine airstrikes aimed at Islamist militants who are holding hostages as human shields killed 11 soldiers, authorities said Thursday, as they conceded hundreds of gunmen may have escaped a blockade.The friendly fire deaths bring to 171 the number of people reported killed since militants waving the black flags of the Islamic State (IS) group began rampaging through the Muslim city of Marawi last week.Shortly after the violence erupted President Rodrigo Duterte imposed martial law across the