A derelict building was "deliberately" set on fire near the old RAF Bentwaters site in Rendlesham.
Suffolk Fire and Rescue Service was called to the single-storey building on the A1152 near Bentwaters Business Park at 5.45pm, where they found straw and other building materials on fire.
Two fire crews, from close-by Woodbridge and Orford, put out the fire.
The incident ended at around 7pm with Suffolk Fire reporting it to police as a "deliberate" fire according to a spokesman from Suffolk County Council.
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