CADDO, Oklahoma (KXII) - After three separate house fires in less than a week, the Caddo Volunteer Fire Department contacted the Oklahoma state fire marshal to help investigate.

Arson a concern as officials investigate string of Texoma house firesWhat we knowCaddo fire crews were called to a house fire on June 18.

Veteran Caddo Firefighter Brain Cooper said the house was already about halfway engulfed from the back by the time crews arrived."We just had to do management at that point," Cooper said.