PHILADELPHIA (CBS) — Police are investigating shooting at a high school in Northeast Philadelphia that left a teen wounded.

It happened Saturday night in a field just behind Archbishop Ryan High School on Academy Road.

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Police say a teen boy was shot in the thigh.

He was taken to Aria-Torresdale Hospital in stable condition.

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It was not immediately clear if the victim is a student at the school.

There was no word on what led to the shooting.

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No arrests have been made.