A fire at a factory in Sunderland is not believed to be suspicious after a police investigation was launched.
Fire crews including five engines and an aerial ladder platform attended the incident on Hendon Street, Sunderland, shortly after 1pm on July 10.
No one was injured, but the manufacturing factory suffered significant damage to its building.
A joint investigation by Northumbria Police and Tyne and Wear Fire and Rescue Service was launched into the cause of the fire, with the force confirming on July 13, that it was not believed to be suspicious.
A force spokesman said: “Shortly after 1pm on Friday, July 10, we were alerted by the fire service to a blaze at a premises on Hendon Street, Sunderland.
“Thankfully, nobody was injured. An investigation has been carried out by police and the fire service, with the cause of the fire is not believed to be suspicious.”
The fire was burning for around three hours and thick, black smoke could be seen for miles with residents in the area urged to keep their windows and doors closed.