ROCK VALLEY, Iowa (KTIV) -- Investigators are trying to determine what started a fire that damaged a building and equipment at a farm near Rock Valley, Iowa, Sunday night.
A machine shed was fully engulfed in flames when firefighters arrived at the scene.
The building contained dairy equipment and hay bales.
No people or livestock were injured.
Damages are estimated at $750,000.
Fire departments from Hull, Doon, Inwood, Sioux Center and Hudson, South Dakota, helped the Rock Valley Fire Department battle the blaze.