Fire investigators in Monroe County are looking for a cause of a blaze that started Saturday night at Protech Metal Finishings in Vonore.
Fire crews from Vonoe, Madisonville, Loudon County, Lenoir City and Greenback all responded to aid in putting out the fire.
An injury report was not available by officials on scene.
Authorities say this is the second fire reported at the business. The first one took place in 2013.