Firefighters were called to the Indiana Gun Club, located on 113th Street in the Geist area of Fishers.  Authorities received a report of an explosion and fire at the gun club around 6:40pm Tuesday.

Fishers Fire personnel found a substantial amount of fire which was quickly extinguished. An enclosed trailer, storage sheds and garage were involved.

Fire Investigators say the cause of the fire/explosion was a self-ignition of the smokeless powder inside the trailer.  Fire officials believe the interior temperature of the trailer reached an ignition temperature, causing the rapid ignition of materials.  The investigation will continue.

The club appeared to be closed at the time the incident was reported.

As of 7:37pm Tuesday, 113th Steet remained closed until fire hose equipment could be removed from the scene.