Brandy and Zack Peterson's mobile home was destroyed over the weekend in Chippewa County. It happened at the Whispering Pines Mobile Home Park in the Town of Wheaton.
Crews found a fire moving quickly from a bedroom into other parts of the home.
Investigators say a 4-year-old boy started the fire in the bedroom with a cigarette lighter.
That boy then informed his parents who, evacuated the home and called 9-1-1. No one was injured in the fire.
Because the family had no insurance a benefit account has been set up for them at the Royal Credit Union in Eau Claire. If anyone would like to make a donation they can stop in or call any RCU office.