Chicago police say officers were following up on calls of a domestic incident when they attempted to pull over a vehicle in the 6900 block of North Ravenswood just before 5 p.m.
A man then got out of the vehicle brandishing a firearm, and fired shots at police, officials say.
Officers then returned fire, striking the man.
The man was taken to an area hospital. Chicago fire officials say the man was in red condition (serious-to-critical), but police were unable to confirm his condition at this time.
No officers were struck by gunfire.
Fire officials say that four other individuals have been sent to area hospitals with injuries. One individual was sent to an area hospital in "green" (good-to-fair) condition, while the three others were hospitalized in "yellow" (fair-to-serious) conditions.
A weapon was recovered on the scene, officials said.
The officers involved will be placed on administrative duty for 30 days, per department policy. A use of force investigation will be undertaken by the Civilian Office of Police Accountability.
We will update this story with more details as they become available.