MOSCOW (MRC) -- Rescue workers dug through rubble Friday trying to find survivors from an explosion that tore through the headquarters of Mexican state oil company Petroleos Mexicanos on Thursday, killing already 36, according to Reuters.
Mexican rescue workers found three more bodies over the weekend amid the rubble of a deadly blast.
Pemex, one of the world's biggest oil companies, said it did not know the cause of the blast but Mexican and international experts are investigating.
"I want to emphasize the complexity of the investigation. We can't explain something like this in a few hours," said Pemex CEO Emilio Lozoya.
Mexican officials privately said there was no early indication of sabotage in the blast, which sent a giant fireball into the sky and partially destroyed an administrative building next to the oil firm's landmark skyscraper, which has 48 floors and towers over the city's central skyline. As MRC informed earlier, a government official, speaking on condition of anonymity, said a preliminary line of investigation was that the blast came from a gas boiler that exploded in the adjacent Pemex building. But the cause was still being determined, the official added. Analysts discounted the likelihood that the blast was an attack.
"Instead, the explosion is a reflection of Pemex's aging infrastructure and lacking safety protocols," Alejandro Schtulmann, an analyst with political consultancy Empra, wrote in a note to clients.
Some 52 other people remained hospitalized Friday due to the explosion, which the company said hadn't affected its oil operations. It was unclear how many people might still be trapped in a basement part of the building, which was partially collapsed.
Pemex, Mexican Petroleum, is a Mexican state-owned petroleum company. Pemex has a total asset worth of USD415.75 billion, and is the world's second largest non-publicly listed company by total market value, and Latin America's second largest enterprise by annual revenue as of 2009. Company produces such polymers, as polyethylene (PE), polypropylene (PP), polystyrene (PS).
MRC