Last night, fire crews responded to a fire at the WJMC radio transmitter building in the town of Oak Grove.

The Rice Lake Fire Department says they were called around 8 p.m. about a structure fire by a radio tower at 2874 20th St.

They say the building was fully involved and had a partial roof collapse and a generator was on fire near the building.

Fire fighters put out the fire by about 8:30 p.m.

They say the fire appears to have started in the generator and then spread to the roof.

They say the property is owned by the Koser radio network. WJMC Radio is still on-air at this time.

No one was hurt during the fire.

The Rice Lake Fire Department estimates about $250,000 in damages for the building, contents, and generator.