A collision between a small bus and a sport-utility vehicle left six people injured on Tuesday, authorities said.

News outlets reported that a bus with the Gadsden Trolley Service was involved in a crash near a retail development. Photos showed the bus on its side and the SUV badly damaged.

Will Reed, chief of emergency medical services with the city, said six people were injured, including one who had to be transported by air to a hospital in Birmingham. Five others were taken to hospitals in Gadsden.

It was unclear what caused the crash, and authorities did not release any names.