Norfolk Fire and Rescue Service (Image: Archant Norfolk Photographic © 2011)
Five fire crews are currently on the scene of a blaze at an industrial unit in Watton.
Appliances from Watton, Thetford, Attleborough, Dereham and Swaffham were called to the unit on the Norwich Road Industrial Estate at 3.25pm to reports of a fire in an extractor fan.
Firefighters are using hose reel jets, breathing apparatus and a thermal imaging camera to extinguish the blaze.
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