WHITEHALL, Wis. (WKBT) -

Heavy equipment is being brought in to tear down a 100-year-old feed mill, which was destroyed by fire late Wednesday night.

The fire in the Larson Agri Service feed mill building in Whitehall was reported around 10 p.m.  Trempealeau's fire chief tells News 8 between 75 and 100 firefighters from nine of the county's 13 departments battled the large fire for a few hours.

Nobody was inside the building at the time of the fire, and nobody was hurt.

The owner of the building is in the process of phasing use of it out, so there weren't any chemicals or fertilizer inside.

"It was [the building] over 100 years old.  At the time, I don't believe, the owners were phasing-out that part of the building so there wasn't a whole lot in that part of the building," said Chief Jeremiah Pientok of the Whitehall Fire Department.

The cause of the fire is under investigation.