An NJ Transit worker was injured Monday after a crash left him trapped inside a bus.

According to police, the worker was a mechanic who was bringing an out-of-service bus to a garage. The accident occurred at Main and Greenwood streets in East Orange. Authorities say the bus slammed into a firehouse, trapping the man inside. Police say it appears the man lost control of the bus.

The mechanic was in stable condition when he was transported to University Hospital. Since the bus was out of service, there was no one else on the vehicle at the time of the crash.