Investigators say arson is the cause of a blaze that left one firefighter hospitalized.
The fire occurred around 3 am Friday at an old warehouse building located near the intersection of North Main and West Fourth streets.
Fire investigators say one firefighter was treated at a local hospital for smoke inhalation. He was later released.
This is the fourth non-residential fire in the downtown area in the last month, all of which were acts of arson.
Investigators say they're not connecting this fire to the others just yet.