Six fire engines and around 40 fire fighters were called to a fire in a recycling plant in Ardra Road, Edmonton.
A small part of the single storey building was alight. There were no reports of any injuries.
The Brigade was called at 1127 and the fire was under control by 1303. Firefighters will remain at the scene of the fire this afternoon.
Fire crews from Edmonton, Enfield, Tottenham and Islington Stations attended the incident.
The cause of the fire is under investigation.