A fire at a Westside home has arson investigators on the case. The house caught fire on Saturday night at seven in the 800 block of Cheyenne. That's near the intersection of Baldwin and Morgan. When emergency crews got to the scene they noticed smoke coming from the back of the house. The fire was put down within minutes. Investigators believe the fire may have been set by someone. Fire Captain, Robert Ruiz tells 3 News, "There's been some damage to the interior, otherwise thankfully no one was home at the time. It is under investigation as to the cause." Officials were also hoping to speak with neighbors to hear what they may have seen just before the fire broke out.