Seeley Lake, MT – Fire investigators are still looking into what sparked an explosion that rocked the town of Seeley Lake on Monday afternoon.

Seeley Lake Fire Chief Frank Maradeo tells us a fire department administrator heard a loud explosion shortly after 1:00 p.m. She then ran outside and saw debris falling from the sky.

The debris came from a cabin which is completely destroyed and Maradeo say that parts of the cabin ended up in the lake and in the nearby trees. He adds that nearby homes suffered some damage to windows and walls.

Based on a preliminary examination by the state Fire Marshall, officials believe that a propane tank leak in the crawl space ignited with some sort of heat source causing the explosion.

The people who own the cabin were not home at the time of the explosion. And a firefighter suffered a sprained ankle while fighting the blaze.