CHICAGO (CBS)– Crews responded to a hazmat situation in the West Loop early Tuesday morning.
Carbon monoxide levels were found in the parking garage at an apartment building in the 1000 block of West Madison Street just after 3 a.m.READ MORE: Chicago Weather: Winter Weather Advisories In Effect; Snow Arrives For Monday Morning Commute
Chicago firefighters opened doors and used industrial fans to get the carbon monoxide out of the building.READ MORE: Illinois State Departments, Driver Service Facilities Reopen Monday Weeks After COVID Surge
No one was hurt and the building was not evacuated.MORE NEWS: Police Issue Multiple Alerts Involving Robberies, Burglaries, Carjackings Across The City
A broken ventilation fan was the cause of the high levels.