A fire in southern Johnson County brought out multiple fire departments and damaged a warehouse used by the state for storage.

The fire happened off County Road 650S, in the Atterbury Fish and Wildlife area, north of Edinburgh.

What caused the fire is not known and both Indiana Conservation Officers and the Indiana Fire Marshal are investigating the blaze, Indiana Conservation Officer Markie Throgmorton said.

No one was in the building, and no one was injured battling the blaze, she said.

At least nine fire departments were called to the fire that started at 12:41 a.m. Tuesday, according to a news release from the Indiana Department of Natural Resources.

A worker at the nearby Atterbury Job Corps noticed the flames and called 911, the release said.

The flames damaged a warehouse that the state uses to store equipment, Throgmorton said. The building is older and not much of it was used, she said.

The warehouse is surrounded by trees and fields, so no other properties were damaged or at risk of catching fire, she said. The area where the fire happened is a state-run conservation area.

Fire departments in Franklin, Bargersville, Trafalgar, Nineveh, Amity, Harrison Township, German Township, Edinburgh and Whiteland all came to battle the fire, the release said.