A man suffered a possible graze wound to his head Sunday night when shots were fired at his car while he was driving in Pilsen.
The 21-year-old was driving in the 1600 block of South Loomis about 8:40 p.m. when someone fired shots from another vehicle, police said.
He drove himself to Stroger Hospital, where he was treated for a possible graze wound to his head.
Police said the wound is very minor, and investigators are working to determine if he was actually struck by a bullet, or cut by glass fragments during the shooting.
The victim is a documented gang member, according to police.