Mall Explosion in Manila Kills 9

Police and other security examine the damage of the busy Glorietta Shopping Mall at the financial district of Makati city, east of Manila, Philippines moments after a powerful explosion Friday Oct. 19, 2007 killed at least six people and wounding 70 others. (AP Photo/Bullit Marquez) (Bullit Marquez - AP)

Police Chief Inspector Raynold Rosero, deputy chief of the Philippine Bomb Data Center, said no bomb parts or fragments such as a detonating cord, switch or power source were immediately found in the area, which was damp, possibly because of broken pipes.

Officials said the blast, which appeared to have originated close to the mall's ground-level loading dock for delivery vehicles, ripped through three floors of the mall, covering shops and restaurants with dust, glass splinters and other debris.

Taxi driver Mario Em said he had just dropped off two female passengers at the mall when the blast hurled the two women against his vehicle, killing them instantly. He said he pulled one of the victims, who was pregnant, from underneath his car.

Mae Ann Sison said her sister, Angelica Cortez, was on an escalator going down from the second floor when the blast tossed her in the air.

"She landed on the escalator and her right foot got caught in the escalator chain and she was hit by glass shards from shops around her," Sison said.

People inside the mall ran toward the exits when the blast went off.

"One man who was in front of me was already dead. There was a child but we don't know where the child is now," said Dennis Inigo, who was shopping at the time of the explosion.

"The man's wife was with me a while ago, and her leg was shattered. Many people were falling on top of each other," he said. "It was loud, and then it became dusty."

Several months ago, authorities were alerted to an alleged terror plot to plant bombs in Manila's business districts of Makati and Ortigas, a government counterterrorism official said on condition of anonymity because he was not authorized to speak to the media.

In 2000, five bombs exploded nearly simultaneously around Manila, killing 20 people and wounding about 100. The attack was blamed on Abu Sayyaf and Jemaah Islamiyah.

In 2004, Abu Sayyaf militants blew up a passenger ferry in Manila Bay, killing 116 people in the country's worst terrorist attack. The following year, four people were killed and dozens wounded when a bomb exploded on a Makati bus and two southern cities.

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Associated Press writers Teresa Cerojano and Jim Gomez contributed to this report.