Fire investigators have determined a blaze at an Indian Road house in Windsor to be intentionally set.

On Tuesday, Windsor fire rushed to 446 Indian Rd. for a report of a fire in a vacant building just before 7 p.m. Upon arrival, flames could be seen coming from the upper level of the building.

After firefighters put out the flames, they remained on the scene for about two hours contending with hot spots.

The Windsor Police Arson Unit has determined that the house was broken into via a rear pedestrian door. No injuries are reported.

A damage estimate has not been released.