At least 14 people were killed and 32 others injured when a bus went off a highway in Brazil’s Sao Paulo state and plunged into a ravine, police said Sunday.
The accident occurred early Sunday about 50 kilometers (31 miles) from the city of Sao Paulo.
The bus, which was carrying 52 people, flipped over on the Regis Bittencourt highway and rolled into a 10-meter (32-foot) ravine.
Investigators have not yet determined the accident’s cause, but precinct chief Renato Gonçalves Coletes, who is in charge of the investigation, told reporters that the bus driver may have fallen asleep at the wheel.
The driver, who sustained minor injuries and is hospitalized, told investigators he had no recollection of the moments before the accident, the police chief said.
No skid marks were found on the section of highway where the accident occurred, bolstering the theory that the driver fell asleep, Gonçalves Coletes said.
The bus left Curitiba on Saturday night and was scheduled to arrive in Rio de Janeiro on Sunday, police said.
The 11 injured, including a 1-year-old child, were taken to hospitals in Itaperica and Taboa da Serra, the two cities closest to the accident scene in a mountainous region of Sao Paulo state.