Mystery blast kills three in Manila
The blast on Friday night blew out the walls of an apartment on the fifth floor, sending a slab of concrete flying on to the street below and smashing into a delivery van. Its driver and two of his crew were crushed to death.

Officials say they still do not know what caused a powerful explosion that ripped through a luxury apartment complex in Manila, killing six people.
The blast on Friday night blew out the walls of an apartment on the fifth floor, sending a slab of concrete flying on to the street below and smashing into a delivery van. Its driver and two of his crew were crushed to death.
Five others, including an American and a nine-year-old, were injured, Interior Secretary Mar Roxas said.
Authorities initially suspected a gas supply issue, and residents were kept out of other buildings as officials assessed the risks.
A telephone operator at the Taguig city police station said the explosion came from an appliance and was not caused by a bomb.
Roxas, who visited the site with President Benigno Aquino, said the building was evacuated and all possible angles were being investigated. He said a forensic examination was not finished.