The Zanesville Fire Department is calling a Sunday afternoon blaze suspicious.
It happened at a vacant duplex in the 1100 block of Greenwood Avenue.
Assistant Fire Chief Kevin Thomas says it appears the fire started near a couch and was contained to one side of the home. He says the owner had just shown the place to some people before the fire started. The department is currently interviewing people but says it has no persons of interest in this case.
The incident remains under investigation.