Islamist State-linked militants holed up in Marawi City have refused to honor peace corridors that could have allowed civilians to move away from the battle, the military said Tuesday. Subscribe to the ABS-CBN News channel! - http://bit.ly/TheABSCBNNewsVisit our website at http://news.abs-cbn.comFacebook: https://www.facebook.com/abscbnNEWSTwitter: https://twitter.com/abscbnnews