Northbound lanes reopened shortly after 6 p.m. following a state police investigation.
State police said troopers responded to St. Bernard's Hospital for a report of two walk-in shooting victims. The victims told police the shooting took place on northbound I-94 at 71st Street.
Police did not comment on the victims' conditions.
If you have any information on the shooting, contact Illinois State Police at 847-294-4400.