MANILA, Philippines (3rd UPDATE) - Two people died in the explosion that hit a condominium unit at Two Serendra in Taguig City Friday night, an initial report said.
The victims were on board a van that was crushed by large chunks of concrete that fell from the upper floor condo unit and into vehicles below, a radio dzMM report said.
The fatalities have yet to be identified.
Skip dela Cruz, who witnessed and took video footage of the aftermath of the explosion, told ABS-CBNNews.com that a Starex van and an Abenson truck were crushed under the huge block of concrete.
"Passengers still inside," he said.
The explosion ocurred around 8 p.m, police said.
Video footage taken from the scene also showed shattered glass of establishments and people seemingly dazed by the explosion.
Police have yet to determine the cause of the blast.
An Ayala spokesperson said the blast may have come from a 3rd or 4th floor unit of the residential condo building.
But an eyewitness told ANC it may have come from the 5th floor.
"Habang nanonood ako ng TV may biglang sumabog. Nasa 6th floor ako, Unit 610B," eyewitness Rene Boy Curado said.
"Nakita ko 5th floor, wasak na wasak yung 5th floor, yung unit," he added.
"Nung sumabog siya pinatay ko yung TV ko tapos lumabas ako ng pintuan, paglabas ko ng pintuan, pumasok yung makapal na usok," he said.
"Biglaang lumabas yung mga residente dito, yung iba nagsisigawan, yung iba nanghihingi ng tulong kasi yung usok nga, makapal yung usok," Curado said.
Taguig City Administrator Joel Montales, in a press statement, confirmed the explosion.
"We are still in the proces of getting all information and determining cause of the explosion," he said. "Local police, fire and rescue teams are in the area to help determine cause and casualties in the explosion."
Residents of the condominium were forced to evacuate the building due to thick smoke.
The loud blast triggered panic among mall-goers at nearby Market! Market! after windows of several establishments were damaged because of the blast.
Witnesses in the area took to micro-blogging site Twitter to post photos of the debris caused by the blast. - with ANC