THORNTON, Colo. – Authorities are trying to figure out what caused a house fire in Thornton Sunday morning.
Firefighters responded to the 12000 block of Fairfax Street at approximately 8:30 a.m., to find heavy smoke coming out of the house.
The fire was located in the basement of the home which has been heavily damaged, according to Assistant Fire Chief Gary Wilmes.
The house is occupied, but no one was home at the time of the fire.
The cause is still under investigation.