Rock Island fire and police crews responded to a structure fire Wednesday morning.

It happened a little after 3:30 a.m. on 8 1/2 Avenue near 25th Street. Rock Island Firefighters told Local 4 News the small fire was on a back porch on a vacant structure.

No flames or smoke were visible, but firefighters were spraying water at the rear of the structure when our crew was on the scene.

The fire remains under investigation. There were no witnesses, firefighters said.

No flames or smoke were visible, but firefighters were spraying water at the rear of the structure.

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