PITTSBURGH - Authorities say a 15-year-old boy has died after accidentally shooting himself in the head during a target shooting session with his father in the yard of their western Pennsylvania home.

Emergency responders were called to the Allegheny Township residence Friday evening.

Police chief John Fontaine says Nicholas Ursiny apparently was trying to reload a small caliber pistol when it discharged.

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He was airlifted to a Pittsburgh hospital.

CBS Pittsburgh reports the medical examiner says the teen died at the hospital Sunday afternoon. An autopsy is planned on Monday.

Charges aren't expected to be filed in what Fontaine has called "a tragic accident."