Firefighters are sharing their fire safety advice for smokers after a flat fire on Cable Street in Limehouse.
Part of a ground floor studio flat was destroyed by fire. Around 50 people evacuated before the Brigade arrived.
Firefighters wearing breathing apparatus entered the property and found a small fire involving a coffee table.
Fire investigators believe the fire was caused by the careless disposal for smoking 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."
Safety advice for smokers
The Brigade was called at 0014 and the fire was under control by 0107. Five fire engines and around 35 firefighters from Shadwell, Whitechapel, Bethnal Green, Dowgate and Shoreditch fire stations attended the scene.