Six fire engines and around 40 fire fighters were called to a fire in Ardra Road, Edmonton
Two men and two women were taken to hospital suffering smoke inhalation
Six fire engines and around 40 firefighters tackled a blaze in an office block in East Finchley.
Firefighters are urging people not to try and tackle fires themselves
Six fire engines and 40 firefighters called to fire on ninth floor balcony of Finsbury Park tower block
There were no reports of any injuries
Four fire engines and around 25 firefighters were called to a fire at an industrial unit in River Road, Barking.
Two fire engines and around 10 firefighters attended a fire in a flat in Woodland Grove, Greenwich.