Murray firefighters fought a stubborn early Tuesday morning blaze in a warehouse building near the Murray North TRAX light rail station.
Crews found flames and smoke pouring from the structure at 4300 South and Fireclay Avenue when they arrived at the scene about 2:30 a.m. About an hour later, the flames had been snuffed, only to flare anew around 6 a.m. before once more being doused.
No cause for the fire had been determined as of late Tuesday.
Crews searched the inside of the roughly 5,000-square-foot warehouse but did not find anyone camping in or by the building who might have started the fire accidentally. In addition, a hydrocarbon-sensitive arson dog went over the area but did not hit on any accelerant, according to Deputy Fire Marshal Pat Killion.