WAUWATOSA, Wis. (CBS 58) -- Wauwatosa Police Department officers were involved in separate crashes Sunday evening, Dec. 7. 

The first crash took place near Mayfair Road and Center Street just after 6 p.m. Police say an officer stopped a vehicle for not displaying license plates. During the stop, a ride-share vehicle rear-ended the squad car. The ride-share vehicle rolled onto its side before coming to a stop. 

Two people in the ride-share vehicle were transported to an area hospital with non-life-threatening injuries. 

The second crash happened near Bluemound Road and 121st Street. Officers were responding to a crash where a vehicle hit a light pole and the driver was arrested for OWI. 

While helping the arrested driver into the back of a squad car, a passing vehicle struck one of the officers and the driver arrested. 

Officials say the arrested driver suffered an ankle injury and the officer was taken to an area hospital for evaluation and later released. 

The driver of the striking vehicle remained on scene and cooperated with the investigation. It appears that the driver of the striking vehicle was distracted and did not see the emergency vehicles in time to safely move over.

Both crashes remain under investigation.