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.
More top news
Margaret Mary MacDermott was last seen at her home in Fenhan in Newcastle on the evening of Friday February 12.
The win rekindle's the Black Cats' survival hopes and pile the pressure on United manager Louis van Gaal.
Eddie Hall, 41, had been working as a chef in Ho Chi Minh City for over a year but was reported missing in January.