The fire at Cleveland Industrial Estate in Darlington is causing disruption on the nearby east coast rail line.
Because of this, there are delays of up 60 minutes to trains between Northallerton and Newcastle via Darlington.
These delays will continue until further notice.
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Nigel Farage's former deputy Mr Nuttall says he's the only candidate who can rebuild and unify the party.
The 27-year-old was stabbed in Arthur's Hill, Newcastle on Monday and later died in hospital.
Newcastle get three points from the match and now three points clear at the top.