Philippine police are investigating a bombing that left at least six people dead in the southern city of Zamboanga. Dozens of people were injured when the bomb tore through a crowded food court Sunday. No one has claimed responsibility for the attack. It happened as U.S. military officers were in the city to discuss the Philippine government's fight against Abu Sayyaf militants. The Muslim fighters have kidnapped scores of people to fund their separatist campaign in the Southern Philippines.
