Perry Township fire crews were called to 10006 Old Mount Vernon Road in Vanderbugh County around 11:50 Thursday night.
Officials on scene told 14 News when crews arrived a pole barn housing various vehicles, boats and recreational vehicles was completely engulfed in flames.
They say it took around 40 minutes to put the fire out.
Firefighters say they had a hard time entering the building because heat from the fire was melting metal on the barn, forcing them to pull the barn's frame apart piece by piece.
Marrs and Perry Township fire crews both responded to the fire.
No injuries were reported.
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