At least a dozen cars caught fire at a parking garage in city's Loop Saturday afternoon, according to the Chicago Fire Department.

Around 12:41 p.m., authorities responded to the fire at the structure located at 17 E. Adams St., CFD said in a tweet. [[427667923, C]]

More than a dozen cars were burned, fire officials said, with an "unknown total number" damaged in the incident.

The fire broke out on the seventh floor of the 15-story building, which only has occupancy on the first floor, according to CFD.

The incident was upgraded to a 2-11 alarm fire around 1:10 p.m. in a call for "more manpower," authorities said.

The fire was struck out around 1:30 p.m., according to CFD, though firefighters were still working at the scene.

No injuries were reported, fire officials said, and no one was taken to the hospital as a result of the blaze.

The cause of the fire remains under investigation.