Chickasha Fire Department responded to a house blaze in the 1400 block of S. 9th Street early Thursday morning.
CFD Fire Chief Greg Gibson said an investigation showed an electrical failure in the attic led to the flames.
"The rear portion of the building was damaged, but it was in no way totaled," said Gibson. "There was a lot of smoke damage in the kitchen area."
Gibson said CFD's investigation has concluded and the matter is considered closed.