Authorities are hunting for a suspect after a police officer was shot near Philadelphia.

The shooting occurred at about 10 a.m. in Folcroft.

Amtrak spokesman Craig Schulz says two northbound passenger trains are being held due to the police activity in the area. He says about 500 people are on the Acela and Northeast Regional trains. A local commuter rail line also halted service.

The shooting occurred about a block from the rail lines. The circumstances are unclear.

Folcroft borough officials confirm an officer was shot but say they cannot comment on the officer's condition.