The shooting happened shortly before 9 p.m. near West 47th Street and South Fairfield Avenue.
The victims, identified as three men and one woman, were shot while inside a vehicle. All were pronounced dead at the scene.
Authorities were searching late Friday for a white SUV in connection to the shootings.
Additional patrols headed to 9th district as CPD searching for a white SUV in connection to multiple shooting at 4700 S. Fairfield.— Anthony Guglielmi (@AJGuglielmi) September 16, 2017