PLAINFIELD - A vehicle fire that damaged two buildings and multiple pieces of heavy equipment Sunday afternoon in Plainfield is being considered accidental but the investigation is ongoing, according to Plainfield's fire marshal.

"We know there was a gentleman working on a vehicle inside the building," Fire Marshal Paul Yellen said. "And there was possibly some kind of mechanical problem as he was doing repair work."

At 4:07 p.m. Sunday, members of the Plainfield Fire Company was dispatched to the reported vehicle fire at the commercial address of 731-735 Norwich Road, Plainfield.

According to Yellen, the storage building in which the vehicle was in is a 60-foot by 92-foot structure.

"The fire originated in that building, and from there spread to a secondary building that is 49 by 45," Yellen said, adding that the second building is vacant with nothing inside. "The fire extended into the attic area from exposure to the fire in the main building."

There were no injuries reported from the fire but Yellen said heavy equipment being stored in the main building by a couple of businesses was destroyed.

Firefighting efforts knocked down all visible fire by 6 p.m. and the incident was deemed under control at 6:31 p.m.

The fire remains under investigation. Fire companies from Moosup, Central Village and Jewett City assisted.