Nottinghamshire Fire and Rescue Service say 1,000 tonnes of metal is involved in the fire at Briggs Metals Limited on Great North Road
Approximately 1,000 tonnes of metal is involved in the fire at a scrapyard in Newark.
More than 40 firefighters from across the county are tackling the blaze at Briggs Metals limited, on Great North Road.
Eight appliances are at the scene, two of which are from Newark.
The other engines have been called from Nottingham's London Road station, Edwinstowe station, and Carlton station.
In their latest update, Nottinghamshire Fire and Rescue Service said: "Fire crews are continuing to deal with the fire in Newark and we would like to thank you for your patience while we remain on scene.
"The A616 (Great North Road) is closed as the incident is still ongoing, so please avoid the area if possible.
"If you are in the area, please keep doors and windows closed."
Newark And Sherwood District Council also advised those in the area to keep doors and windows closed.
Newark Police highlighted the incident on their social media channels.
They said: “There is a large fire at the scrapyard on Great North Road. Please avoid.
"Road closures are in place.”
A wide cordon is in place because gas cylinders are involved and the fire service, as of yet, is unable to confirm if there has been any injuries.
An eyewitness first noticed the fire at 11:15am.