STOCKTON (CBS13) – Police are investigating after a 15-year-old was shot by a younger sibling Saturday night.

Joe Silva with the Stockton Police Department says the teen was shot in the foot by a 3-year-old. The injuries are not life threatening, police say, and the teen has been transported to the hospital.

It is unclear where exactly the shooting happened, as police learned about the incident when the teen showed up at urgent care just after 8 p.m.

Apparently, the children were playing hide and seek and went into the closet of the master bedroom and found the gun. Investigators believe the 3-year-old grabbed the gun and accidentally shot the 15-year-old.

Police say the gun belongs to the stepdad. The children’s parents are cooperating with the investigation.