Illinois State Police were investigating a shooting that occurred shortly after 10 p.m. Thursday on the Stevenson Expressway on the north side near Archer Avenue.
Police said that one person’s life is in danger in the firing. According to the Civil Office of Police Accountability, which responded at the scene, an off-duty Chicago police officer was involved in the shooting.
State police closed all of Stevenson’s northbound lanes after they investigated and cleared the scene.
Anyone with information was being asked to contact the state police by calling 847-294-4400 or by emailing [email protected],