Fifteen fire engines and around 100 firefighters responded to a fire in a waste facility on Cottage Road, Islington.
Approximately 10 tonnes of waste was alight and around 15 members of staff evacuated the building before crews arrived. There are no reports of any injuries.
The Brigade was first called about the incident at 1604, and crews from Holloway, Shoreditch, Stoke Newington and surrounding fire stations have been mobilised to the scene. Crews were able to contain the fire by 1948. Firefighters will remain on scene into the night, working to extinguish remaining pockets of fire.
The cause of the fire is not yet known.