San Antonio police are trying to piece together a shooting incident that sent a 17-year-old girl to the hospital with a bullet wound to her head.

Gunshots were reported just after 11 p.m. Sunday near San Pedro and Mariposa.

The girl showed up at Methodist Hospital a short time later with a wound to the back of her head.

Police put out a description of the vehicles that may have been involved in the shooting and an officer spotted a suspicious car in the area and pulled it over.

Four people were inside the car and taken in for questioning. Police said a gun was found inside the vehicle, but have not announced any charges.

Police have not given a motive, but are investigating whether the shooting was over drugs.