The fire at Hensons, Inc. last Thursday is still under investigation and caused between $350,000 and $400,000, according to Tryon Fire Chief Joey Davis. The fire has been processed by Davis and the N.C. State Bureau of Investigation (SBI) and turned over to the Polk County Sheriffs Office. The fire destroyed three tractor trailers; a 2001, 2006 and 2010 Kenworth. Last weeks fire was the second in the past year at Hensons, on Ridge Road in Tryon.