Fighting has erupted between Muslim rebels and Christians in Zamboanga City . At least 158 people have been killed , including many civilians . United States : The unrest has displaced more than 100,000 people . Authorities believe about 100 hostages are still being held by rebels .
Fighting has raged between Muslim rebels and soldiers in Zamboanga City . At least 158 people have been killed , including 13 civilians . United Nations : The unrest has displaced more than 100,000 people . Authorities believe about five hostages are still being held by rebels .