(CNN) -- At least 19 people were killed in the central Mexican state of Queretaro on Monday when a bus crashed into a dump truck, the state-run Notimex news agency reported, citing local officials.
The toll could rise as responders go through the wreckage, the state's minister of security, Adolfo Vega Montoto, said.
Among the dead were 16 passengers, the bus driver and an assistant, and the driver of the dump truck.
The state attorney general, Arsenio Duran Becerra, said that the bodies being found were in pieces, Notimex reported.
Duran explained that the most likely scenario was that the bus hit the dump truck, which caused both vehicles to catch fire. The passengers died instantly, he said.