Polk County Investigators have released the names of a mother and son who died on Tuesday in a house fire in Humansville.
Fifty-eight year old Debra Lamoreaux and 28 year old Gary Lamoreaux died from injuries in the fire.
Gary died on scene and Debra died in a hospital.
Authorities say they are not sure what caused the fire. Witnesses describe hearing an explosion when the fire started.
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