MOUNT DESERT, Maine – A structure fire and resulting explosion in the local village of Northeast Harbor has destroyed three buildings on Main Street.

According to local residents and officials, the fire started sometime around 3 a.m. and caused an explosion believed to have been propane tanks blowing up at Colonel’s Bakery, one of the buildings in the blaze. Also destroyed in the flames is the Wingspread Gallery and the Joy Building.

Firefighters from several surrounding towns, including as far away as Dedham, are providing mutual aid to Mount Desert while most of Main Street is cordoned off. Onlookers are lining Main Street and Tracy Road to get a look at the smoke rising from the burnt-out shells.

One resident, Margot Bass, said she awoke around 3 a.m. from a high-pitched whistling sound, which she believes was caused by the fire. She said she was looking out her window about a half-mile away when the explosion occurred, creating a huge ball of orange light in the early morning sky.

“I thought Northeast Harbor was being bombed because it was so large,” Bass said.

Residents have said several people were successfully evacuated from nearby buildings, but there have been unconfirmed reports that there may be a least one injury.

More details will be made available as they are released by officials at the scene later in the day.