It happened at 2:30 p.m. Tuesday near the intersection of Chelten Avenue and Kenyon Street.
Images from Chopper 6 HD over the scene showed an injured officer being placed onto a stretcher.
The officer was sitting up, appeared conscious, and did not appear to be seriously injured.
But there has been no official word yet on the officer's condition.
There is no word if police have been able to locate the vehicle that struck the officer.
Stay with Action News and 6abc.com as more details become available.