Investigators are trying to determine what caused nine brush fires in Antioch Sunday afternoon.
The fires started just after 2 p.m. along the railroad tracks across from the Hickory Hollow Mall at 5252 Hickory Hollow Parkway.
Crews initially had difficulty approaching the scene.
The blazes were contained late Sunday after 11 fire engines responded.
Officials told Nashville's News 2 no businesses or area homes were in danger.
One firefighter was treated on the scene for a heat-related illness.
They do not believe the fires were intentionally set although the investigation is ongoing.