Chicago’s City Hall was evacuated late Wednesday morning after a fire broke out in a mechanical room at the building, fire officials said.

According to the Chicago Fire Department, a small fire was reported around 11:30 a.m. in the mechanical room at 118 N. Clark.

Fire officials said no injuries were reported but confirmed evacuations were underway as a result of their response.

NBC Chicago crews inside the building confirmed the evacuation. Area alderman also posted on social media as they exited the building.

Check back for more on this developing story.