The driver of a van had to be extricated from her vehicle after a collision with a school bus in Berrien County at 2:08 p.m. Tuesday.

According to the Michigan State Police, the Benton Harbor High School bus involved in the accident contained two people: a driver and a school bus monitor. No children were on the bus.

The van was occupied by four people from the Detroit area, including a 28-year-old female driver, whom police haven’t identified.

The driver of the bus was heading south on M-139 near Diller Road in Benton Harbor when he saw a van traveling north cross the centerline into his lane. The driver of the bus swerved but was unable to avoid the van and struck it head on.

The driver of the van admitted being sleepy from working long hours at her job and fell asleep at the wheel.

The driver of the bus was not injured. The bus monitor was sore but did not need medical attention. The four occupants of the van were transported to Lakeland Hospital by Medic One Ambulance. The driver of the van was trapped behind the wheel and was cut free by the Benton Township Fire Department with the assistance of the Royalton Township Fire Department.

Michigan State Police were assisted by Benton Township Police.