CHICAGO (AP) — Authorities say a 28-year-old woman was fatally shot and her 4-year-old son was wounded by gunfire in Chicago.

Officials say the shooting happened Friday evening on the city’s West Side. The Cook County Medical Examiner’s office identified the woman as Nikia Betts. Officials say she was shot in the head and taken to a hospital, where she died less than an hour after the shooting. Police say the boy was shot in the arm and was in good condition at a hospital.

A man who identified himself as Betts’ cousin told the Chicago Tribune she was walking through an alley near her home when the shooting occurred. Ronnie Betts says he heard gunfire before the boy came running with a gunshot wound to his arm, saying “mom’s been shot.”