A Philadelphia police officer was hospitalized after a SEPTA bus collided with a cruiser early Thursday morning.

Around 5 a.m., two officers were responding to a call when the commuter bus struck the squad car on the passenger side at the intersection of 63rd Street and Haverford Avenue in West Philly, reports said. The impact pushed the squad car into a pole. 

The seargent behind the wheel was not injured, but the passenger, another officer, was loaded into an ambulance wearing a neckbrace. Police told NBC10 he wasn't bleeding, and didn't appear to have any broken bones. The injured officer was reportedly complaining of head and back pain. He was transported to Penn Presbyterian Hospital.

There were no passengers on the bus, and the bus driver was not injured, according to 6ABC.

The crash remains under investigation.