An unattended fire in Roanoke County on Thursday has forced several apartments to be vacated.

At 1:54 p.m. Roanoke County Fire and Rescue responded to the Ridgeview Apartments on Hawthorne Road in the North County area of Roanoke County, for a reported commercial structure fire.

Responding units arrived to find nothing showing from the outside of the multi-story apartment building. Once inside, crews found evidence of a fire on the fifth floor that had been extinguished by the sprinkler system.

Crews said fire damage was minimal but water from the sprinkler head did cause about $20,000 in damage and displaced four units.

Those displaced are either staying with family and friends, are being helped by the management at Ridgeview Apartments, or are being assisted by their renter’s insurance, according to Roanoke County Fire and Rescue.

There were no injuries and working smoke alarms and sprinkler systems both played a role in keeping residents safe.

The Roanoke County Fire Marshal’s Office reports that the cause of the fire was unattended melting wax on a stovetop.