PUNTO FIJO, Venezuela - The death toll rose to 41 at Venezuela's biggest oil refinery, where fires were still raging on Monday two days after a powerful explosion.
Hospital officials in the western city of Maracaibo said on Sunday that a soldier and a member of the National Guard had died. The two men were taken to the hospital with wounds including severe head injuries and burns covering much of their bodies, the Venezuelan newspaper El Universal reported.
Government officials had previously confirmed that 39 people died and more than 80 were injured.
Residents in a neighbourhood next to the refinery say they had no warning before the explosion hit at about 1 a.m. on Saturday.
"What bothers us is that there was no sign of an alarm. I would have liked for an alarm to have gone off or something," said Luis Suarez, a bank employee in the neighbourhood. "Many of us woke up thinking it was an earthquake."
The blast knocked down walls, shattered windows and left streets littered with rubble.
People who live next to the refinery said they smelled strong fumes coming from the refinery starting between 7 p.m. and 8 p.m. Friday, hours before the blast, but many said they weren't worried because they had smelled such odours before.
Then, a cloud of gas ignited in an area of fuel storage tanks and exploded. Some of the tanks were still burning on Monday, billowing black smoke.
President Hugo Chavez visited the refinery on Sunday and said investigators haven't yet determined what caused the disaster.
In a televised conversation with Chavez, one state oil company officials said workers had made their rounds after 9 p.m. and hadn't noticed anything unusual. The official said that at about midnight officials detected the gas leak and "went out to the street to block traffic."
"And later something happened that set (it) off," Chavez said. "A spark somewhere."
Energy analyst Jorge Pinon said the accounts of the hours leading up the explosion raise concerns.
"The fact that the gas leak went undetected for a number of hours and that there was no evacuation alarm (or) order indicates to me that there is a lack of safety related planning and behaviours throughout the complex, and most important in nearby communities," Pinon said.
Amuay is among the world's largest refineries and is part of the Paraguana Refinery Complex, which also includes the adjacent Cardon refinery. Together, the refineries process about 900,000 barrels of crude per day and 200,000 barrels of gasoline.
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Associated Press writer Ian James in Caracas contributed to this report.
