Philippine crisis deepens as air strike on rebels accidentally kills 11 soldiers

By Tom Allard and Neil Jerome MoralesMARAWI/MANILA (Reuters) - An air strike on Islamist rebels holed up in a southern Philippine city has killed 11 government troops, the armed forces said on Thursday, in a major blow for a military struggling to end its biggest internal security crisis in years.The accident happened on Wednesday when one of two planes bombing rebel positions missed its target in the heart of Marawi City, where ground troops took on pro-Islamic State militants in a tenth day of