Investigators said there were no students on the bus during the crash and the bus driver was not injured. The intersection was shut down following the incident.
Police said the reason Halsey crossed the yellow line into oncoming traffic is not known.
“While our bus driver was not injured, we are deeply saddened to learn that the driver of the car has passed away. Our thoughts go out to the driver’s family,” said Betsy Fuller, spokeswoman for Lakota Schools.
The crash remains under investigation by the Traffic Investigations Unit and the Serious Traffic Accident Reconstruction Team, according to the Butler County Sheriff’s Office.