Three dogs reportedly died and officials discovered what they believed was a small marijuana growing operation.
Capt. Stoney Mathews said the call regarding the fire was received at Bradley County 911 around 7 p.m.
According to Donnie Sullivan, fire and arson investigator with BCFR, the living room of the residence was gutted by flames.
Three adjacent units suffered smoke damage, but tenants were able to go back into their homes.
After dousing the flames, which were contained to one room, firefighters found components of a growing operation as well as suspected marijuana inside a closet.
Bob Gault, media relations coordinator for the Bradley County Sheriff’s Office, said charges could be pending after special lighting equipment and fertilizer was found along with the suspected marijuana plants.
Gault also said BCSO’s Special Investigations Unit detectives and the 10th Judicial Drug Task Force are involved in the investigation.
Sullivan said the cause of the fire is still undetermined and the investigation is continuing.