Ten people, including two children, were injured in an explosion Thursday near the office of the US International Aid Agency (USAID) in a southern Philippine city, a police official said, the dpa reported.
Senior Superintendent Lurimer Detran said the explosion occurred in the street fronting the gate of a Philippine air force base and the USAID office in Zamboanga City, 875 kilometres south of Manila.
Detran said all the injured were civilians and were rushed to a nearby hospital for treatment.
"We are still trying to determine the extent of the explosion," he said. "It was a bit powerful."
Investigators were still determining the cause of the explosion.