Residents evacuated in area of North London after flames engulfed their apartment blocks . 30 fire engines and more than 310 firefighters battled the blaze . No injuries have been reported , according to police and fire officials . It is not known what caused the fire which took hold of the building in the early hours of Thursday .
Residents evacuated in area of south London after fire engulfed their apartment block . 30 fire engines and more than 310 firefighters battled the blaze . No injuries have been reported , according to police and fire officials . It is not known what started the fire which took hold of the building in the early hours of Thursday .