The College Drive Walmart was evacuated Thursday afternoon following a report of the odor of gas.

The incident was reported at 1:10 p.m., according to a city press release. Suffolk Fire & Rescue responded, as did Columbia Natural Gas, which isolated the odor to a heating unit on the roof of the facility.

Occupants had evacuated the building prior to the arrival of firefighters. There were no injuries. They were permitted to re-enter the building at 1:50 p.m.

Suffolk police provided traffic control at the scene.