(Moline, IL) -- A structure fire at an empty duplex in Moline is being investigated.
The Moline Fire Department was called to a vacant duplex at 2415 4th Avenue around 3:24 p.m. Sunday for reports of smoke coming from the residence.
Upon arrival, crews found light smoke coming from the second floor before finding multiple other fires in different areas of the building.
Crews were able to extinguish the fire in one hour.
One firefighter sustained minor injuries and was treated at the scene before returning to duty.
The fire department is classifying this fire as intentional.