Two adults and two children were killed the blaze, which was caused by a space heater in a rear bedroom, Ward said. Officials didn't release their names, but said the children were 8 and 10 years old and the adults were 33 and 62.

TENNESSEE COPS SEEK SUSPECT WHO KILLED 'OFFICIAL' STATE ANIMALS, DUMPED BODIES UNDER BRIDGE

A fifth person found in the home was taken to a hospital in critical condition. It was not known if the house had a smoke alarm, the news release said.

"This situation is sad. I just want to urge the community to be mindful when using space heaters, and never leave them unattended," Ward told media outlets.