MANILA, April 22 — Five people were killed when at least two buildings collapsed as a strong earthquake rocked the northern Philippines, a local official said.

Three bodies have been pulled out of a collapsed building in the town of Porac, while an old woman and her grandchild were crushed to death by another building in the town of Lubao, provincial governor Lilia Pineda told ABS-CBN television.

"The quake has caused a blackout,” she said, hampering rescue efforts in the early evening as night closed in. — AFP