CHICAGO (CBS) — Four people were wounded Wednesday night in a shooting in the South Shore neighborhood.

The victims were walking in front of 7320 S. Phillips Av. at approximately 9:05 p.m., police said, when someone opened fire on them from a sport utility vehicle.

People scattered quickly, but Chicago Fire Department paramedics transported three people from the scene. A 22-year-old man was shot in the upper right leg, and was transported to Northwestern Memorial Hospital in serious condition. A 27-year-old man also was taken to Northwestern, in serious condition, with a wound to the left thigh. A 21-year-old man was shot in the right arm, and taken to South Shore Hospital in fair condition.

A fourth person was found a short distance away, on the 7300 block of South Oglesby Avenue, with a wound to the left calf. That person was transported in good condition to Jackson Park Hospital.

No one is in custody. Area South detectives are investigating.