Norfolk Fire say 14 pumps are now at the scene. Thick clouds of smoke are drifting over the town and roads in the area have been closed to allow crews to tackle the fire.
A store destroyed in a blaze over the weekend continued to smoulder today as fire fighters said the building was unlikely to be saved.
Firefighters who spent all weekend tackling a blaze in Fakenham town centre have released photographs showing what they had to deal with.
Fire crews remain at the scene of one of Norfolk's biggest fires for years