Fire investigations officers have started searching for evidence pointing to what may have sparked a large blaze at a Nottinghamshire firm.
Around 60 firefighters battled the blaze, which started yesterday afternoon at the Nottingham Sleeper Company.
Group manager Keith Jones, from Nottinghamshire Fire and Rescue Service, told ITV Central that things could have been much worse if the sleepers had been stored differently, as piles of concrete blocks had acted as a fire break.
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Outbreaks of rain will move southwards turning clearer and colder.
Heavy showers with a chance of thunder but clearing this evening with clear spells overnight.
Showers are likely to break out which could turn heavy during the afternoon.