Alton firefighters responded Thursday afternoon to Quality Buick GMC Cadillac, 1620 Homer Adams Pkwy. to extinguish a fire that had erupted in the ventilation system of a paint booth. The blaze caused black smoke to billow into the air from near the rear of the building. Employees were evacuated when the fire broke out around 4 p.m., and firefighters made quick work of getting to the blaze. Despite the ominous visual of the smoke, little damage was done to the building and the dealership planned to be open for business as usual on Friday. No injuries were reported. Firefighters continue to investigate what started the fire.