Around 60 firefighters were called to the Alpine Industrial Park in Elkesley, Nottinghamshire, after a large number railway sleepers went up in flames.
Crews from across the county as well as Derbyshire and South Yorkshire were called in to help tackle the fire, at the Nottingham Sleeper Company.
Investigations are ongoing into the cause of the blaze.
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Dry for much of the day with possible brighter spells in the east. Outbreaks of rain will spread southwards later in the day.
Another rather cloudy and mild day. Although dry for most the odd spot of drizzle is possible, mainly over high ground.