Two paramedics and a driver were injured Wednesday night after a vehicle crashed into an Allina ambulance, causing the rig to roll in downtown Minneapolis.

Just after 8 p.m., police responded to the crash near East 14th Street and Portland Avenue, where a car had struck a moving ambulance. The ambulance was not on a service call at the time and did not have a patient on board, said Minneapolis police spokesman John Elder.

The rig rolled on impact and struck a minivan with three occupants, who were uninjured. The two paramedics were taken to Abbot Northwestern Hospital, and the person in the passenger vehicle was brought to Hennepin County Medical Center, said Allina spokesman Tim Burke. All three were released from the hospital later the same night.

The cause of the crash is unknown, but Elder said alcohol does not appear to be a factor. Police are investigating.

Liz Sawyer and Ben Farniok