The Missoula Rural Fire Department is wrapping up its investigation into two house fires in Milltown last week.
Two homes were destroyed last Wednesday on Daytona Loop. Investigators say the fire started under the porch of one home, then spread to a second home.
MRFD told NBC Montana that investigation is about wrapped up and the cause at this point in accidental, undetermined.
There was question of whether a discarded cigarette started the fire but investigators say there is not enough to prove that was the exact cause because everything in back of the home was so badly burned.