Upper Darby, PA — Pennsylvania police are investigating a shooting outside a mosque on Sunday night.

Authorities say it happened in the parking lot of an Islamic Center in Upper Darby.

It's unclear who was shot during the incident.

Police declined to provide further information.

A worshipper at the mosque told local media there were 150 people, mostly men, gathered for the fifth and final prayer of the day on Sunday.

The shooting is under investigation, but, so far, it does not appear to be an attack on the mosque.

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