Four fire engines and around 25 firefighters were called to a fire at a block of maisonettes on Vernon Road, Bow.
Part of a first floor maisonette was damaged by fire. Two people left the building before the arrival of the Brigade.
The Brigade was called at 1838 and the fire was under control at 1921. Fire crews from Bethnal Green Homerton, and Stratford fire stations attended the scene.
The cause of the fire is under investigation.