The Norwalk Fire Department responded to a fire that started inside a vacant home at 1601 N. Ridge Road.
Chief John Soisson said responders were able to “knock the fire down quick,” but added the state fire marshal was contacted because “the fire appeared suspicious.”
“The sheriff and state fire marshall came on the scene today,” he added. The two organizations are working together to process evidence.
An arson dog was also present for the Monday investigation.
Soisson explained that arson dogs are trained to detect the scent of fire accelerants, such as gasoline.
“They believe some sort of accelerant was used,” he added.
A similar fire also occurred on May 25 at a vacant residence on Old State Road.
The fire chief said it is unclear at this time whether the events are related.
Mutual aid for the fire was provided by Huron River Joint Fire District and North Fairfield Fire Department.