NORTHRIDGE, Calif.—A 15-year-old girl attending a house party in Northridge was wounded when a shot was fired, authorities said July 23.

The shooting occurred about 10:10 p.m. Saturday at 8523 Oak Park Ave., according to a dispatcher at the Los Angeles Police Department’s Operations Center.

The girl heard a gunshot and realized she was struck by a bullet, the dispatcher said.

Witnesses saw a male believed between the ages of 16 and 19 fleeing on foot, the dispatcher said.

The girl was hospitalized with stable vital signs, she said.

A news videographer at the scene reported the girl suffered a leg wound and that the gathering was a graduation party attended by more than 80 people.