Four fire departments responded to a business fire in Piney Flats, Tennessee early Tuesday morning.
Sullivan County dispatchers tell us they got a call about a fire at Coldstar International around 2:40 in the morning.
The morning's extremely cold temperatures made battling the flames very difficult for firefighters. The water being sprayed on the fire caused ice to form around the fire scene and on the road.
News 5 has learned the fire is believed to have started on one side of the building at 677 Mountain View Drive, and then spread to the other side. No one is believed to have been inside at the time of the fire.
The company's owners tell us they make hot and cold packs for the therapeutic industry.
The cause of the fire is still under investigation.