Black smoke billowed into the air on Tallahassee's west side Monday afternoon.
A vacant house off Blountstown Highway went up in flames.
It all happened near an abandoned asphalt plant.
A passerby noticed the smoke around three this afternoon and called 911.
Firefighters say when they arrived, flames were shooting 20 feet into the air and the home was completely engulfed.
Fire investigators brought in a K-9 unit to investigate the cause.