Zamboanga military says all hostages freed from separatist group in Philippines . Troops killed six rebels , freed 15 hostages in overnight fighting , spokesman says . The military says it 's sweeping the region for any remaining rebels .
Philippines military says all hostages freed from separatist group in Zamboanga . Troops killed 15 rebels , freed six hostages in overnight fighting , spokesman says . The military says it 's sweeping the region for any remaining rebels .