A huge fire has broken out sparking evacuations at a block of flats in north London. Dramatic footage showed the flames tearing through the roof of the block at Grange Estate in East Finchley. About 100 firefighters were tackling the blaze. London Fire Brigade was called to the scene just after midnight on Wednesday. Some 60 people left the building before the London Fire Brigade (LFB) arrived. Fire crews from Barnet, Hornsey, Southgate, Holloway, Kentish Town, and surrounding fire stations are in attendance. Scotland Yard said officers attended at that an evacuation process was underway. Surrounding roads are closed as firefighters continue to battle the blaze. A Met Police spokesman said the force was not aware of any injuries. LFB said in the statement that the cause of the fire was not yet known. The fire has since been brought under control, it added.