Investigators are working to determine what may have caused a fire at a house in Shelton on Sunday afternoon.
Fire officials said a fire was reported around 2:30 p.m. at a home on Long Hill Avenue. When fire crews arrived, the fire was already showing through the roof.
Crews made an aggressive attack and knocked the fire down in 15 minutes, according to Shelton Fire Department Assistant Chief Nick Verdicchio. Nobody was home at the time of the fire and no injuries were reported.
Firefighters remain at the scene to treat hot spots.
Officials said there is extensive damage to the home and the cause is still undetermined.