A full fire investigation is to be carried out today to establish the cause of a blaze at a commercial premises in Lenwade.
About 25 firefighters were called to offices off Fakenham Road, close to the former DGT Structures site, after fire broke out in the first floor of the building.
It is thought people were working in the offices when the fire broke out – although everyone was believed to have got out safely.
Norfolk Fire and Rescue Service took several calls about the blaze and initially sent three fire engines before more appliances were dispatched.
Nigel Townshend, 47, from Sprowston, was driving past and captured some the fire on his phone after pulling over and calling 999.
He said: 'Out of the corner of my eye I saw a window blow out, a big jet of black smoke and after that a big orange flame. There was glass exploding over the cars that were parked up near the wall.'
Crews from Earlham, Carrow, Sprowston, Dereham, the aerial ladder platform from Earlham and water carrier from Fakenham were among those sent to tackle the fire which started at about 3.40pm yesterday.
Ian Munro, crew manager from Carrow, said: 'The offices were well alight with a developing fire. From our point of view it's a good stop.'
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