Firefighters have issued a smoking safety reminder after a fire at a flat above a derelict shop on Stroudley Walk in Bow.
Half of a first floor flat was damaged by the fire. There were no reports of any injuries.
The Brigade's fire investigators believe the blaze was accidental and caused by the unsafe use of smoke materials.
A London Fire Brigade spokesperson said: "We'd rather you didn't smoke at all, but if you are a smoker it's absolutely vital you ensure your cigarette is completely out when you've finished smoking it.
"If you don't, you risk causing a fire which could not only destroy your home but also cost you your life."
The Brigade was called at 1013 and the fire was under control by 1057. Four fire engines and around 25 firefighters from Poplar, Stratford, Bethnal Green and Millwall fire stations were at the scene.
Safety advice for smokers