It happened around 7:30pm on MacDade Boulevard near Rundale Avenue in Delaware County.
Officials say the police were chasing a motorcyclist eastbound on MacDade Boulevard. The cyclist lost control and slammed into a Yeadon Police cruiser.
The Yeadon Police officer was taken to Fitzgerald Mercy Hospital with minor injuries. The motorcyclist was rushed to the Hospital of the University of Pennsylvania.
Two other officers from neighboring departments were injured when one cruiser rear-ended the other at the accident scene. Both were taken to the Hospital of the University of Pennsylvania.