At least 41 people were killed after a crash between a bus and a truck in southeastern Brazil, state police and the fire service have said.
The death toll was expected to rise further, state police said in a statement.
“We know there are more victims in the wreckage of the vehicles, but we don’t know how many,” it said.
Police said 37 people were killed at the scene. Four more died of their injuries in hospital.
The crash between a bus and truck in Taguai had the highest number of victims on Sao Paulo roads this year, according to the military police. Death toll rose to 41.
An investigation will take place to ascertain what happened, state police said.
Local media said the bus was carrying 53 employees of a textile company. Rescuers were working to help the wounded and passengers caught in the wreckage of the vehicles, images aired on local television showed.