The incident occurred around 1 a.m. at 1323 West Irving Park Road, between Clark Street and Southport Avenue, near the Uptown, Lakeview neighborhood border.
According to one police dispatch report, four males were beating a man with a bat.
Subsequent information identified the offender holding the bat as a black male wearing a white tank top.
Although the victim’s condition wasn’t immediately clear, an ambulance was called to the scene.
If more information becomes available, this article will be updated accordingly.