(CBS) — All lanes on the southbound Tri-State have been closed after an accident involving two semis.
Illinois State Police says crews are working to open all but two lanes so traffic can start moving again.READ MORE: Mobile City Hall Bringing City Services To Little Village Tuesday
The crash happened around 5 a.m. when two semis collided on the southbound Tri-State near the Hinsdale Oasis.READ MORE: Police Release Video Of Suspects Wanted In Death Of 18-Year-Old Azul De La Garza
One the the trucks was carrying hydrochloric acid and other chemicals, which resulted in a hazardous materials response. The side of one of the semis was completely shredded.
The southbound Hinsdale Oasis parking lot has also been evacuated.MORE NEWS: Chicago Police Officers Refusing To Report Vaccine Status Expected To Protest Outside Police Headquarters Tuesday
Backups in the southbound lanes stretched for at least four miles.