The roof of a building collapsed in a fire where flames reached heights of around 15ft.
Four fire engines and around 25 firefighters from London Fire Brigade were rushed to an outbuilding fire in Bowes Road, Southgate, just after 4am on November 1.
A semi-detached, derelict outbuilding was destroyed by fire.
There were no reports of any injuries.
Sub Officer Daniel Burton, who was at the scene, said: “The fire was very visible,
with flames reaching around 15ft high on arrival and producing heavy smoke.
“The roof of the building collapsed and crews worked through the night cutting away and damping down remaining deep-seated pockets of fire.”
The fire was under control by 7.14am.
The cause of the fire is under investigation by the Brigade and the Metropolitan Police Service.