At least seven people were killed and 15 others injured when a truck collided with a bus in a city in the northeastern Brazilian state of Paraiba, police said.

The driver of the bus, which was carrying 29 passengers, was among those killed in the accident, whose cause has not been determined.

The crash occurred early Saturday in Sousa, a town located about 400 kilometers (249 miles) from Joao Pessoa, the capital of Paraiba, a police spokesman told the Globo Web site.

The injured were taken to a hospital, the police spokesman said.

The driver had rested for 17 hours between trips and was working a regular shift, the bus company said.