Lanes were closed on the Dan Ryan Expressway Wednesday morning after a reported shooting near 91st Street.
The incident happened about 9:17 a.m. in the northbound lanes of Interstate 94 between 95th and 91st streets, according to preliminary information from Illinois State Police.
No injuries have been reported, state police said.
All northbound lanes are shut down for the investigation.
This is a developing story. Check back for updates.