Crossville firefighters responded yesterday to a report of a commercial building fire at the Crossville Medical Group walk-in clinic.

Upon arrival, the facility was evacuated because of moderate smoke in the building.

All occupants inside were accounted for.

The source of the smoke came from a heat and air unit.

Crews remained on-scene for smoke removal.

Crossville firefighters were assisted by the Cumberland County Emergency Management Agency and Cumberland County EMS.