Driver crashes into parked police car in West Oak Cliff

West Oak Cliff, TEXAS - A driver crashed into a parked Dallas police car early Tuesday morning in west Oak Cliff.
What we know:
An officer called for assistance in the 100 block of North Walton Walker Boulevard just after 4:30 a.m.
Investigators determined that an unoccupied, marked police car was hit by another vehicle.
Dallas Fire-Rescue responded and transported the driver to a local hospital with non-life-threatening injuries. No officers were injured.
The investigation is ongoing.
What we don't know:
Police have not released details on what led to the crash or what may have caused it.
It is unclear where the officer was in relation to the parked police car at the time of impact.
The Source: Information in this article comes from Dallas police.