Residents are being urged to keep windows closed as firefighters tackle a blaze at a waste recycling site.
Three appliances and an incident unit are at Hartlepool’s Niramax in Windermere Road.
A blaze broke out on Friday at about 11pm and at one stage there were 14 appliances at the plant.
It is thought the adverse weather conditions led to the fire, which started in one of the machines in a shed on the site and spread to other areas.
Now, fireifghters are urging residents living in the Foggy Furzem Belle Vue and town centre areas to keep their windows closed due to a change in the wind direction.
A spokesman for Niramax told the Mail yesterday: “At around 11pm (on Friday), a small fire broke out in one of our machines in a shed on site, which would have been locally contained were it not for the adverse weather conditions. which caused it to spread.
“Firefighters were called and spent most of the night bringing it under control, and confined within the plant boundaries.
“We are working with authorities to establish how it started.”
It is thought Belle Vue Way has also been closed to traffic as crews continue to tackle the blaze.