A collision involving a truck and a bus brought down a portion of a bridge in northwest Mexico that partially buried the vehicle in mud and killed at least 30 people on Tuesday, authorities said.
Alejandro Gomez said the death toll has risen to 39, with more than 100 injured in the accident near the Pacific resort of Acapulco.
Gomez said the authorities have yet to determine what happened to the truck. An investigation was underway, he said.
The passengers were returning from a beach outing.
Jorge Sanchez of the state public security department said a state official who was on the scene was in critical condition but that the dead included many children.
Among those killed was the driver of the bus, according to the Mexican daily Excelsior. The vehicle was owned by a North Carolina-based travel company called ViaMotion.
“ViaMotion has representatives at the scene of the accident and stands ready to fully assist the appropriate authorities in any way,” spokesperson Joni Padilla told the newspaper.
The Associated Press contributed to this report.
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