Twelve fire engines and around 80 firefighters responded to a fire at a commercial building on Forest Road in Ilford.
Part of the ground floor and most of the first floor and the roof of a two-storey building consisting of a gym and a restaurant were damaged by fire. There were no reports of any injuries.
Two 64-metre and 32-metre turntable ladders were used at the scene as water towers to provide water to tackle the fire from height.
The Brigade's Control Officers took six calls to the fire and used GoodSam to live stream incident footage from smart phone cameras to provide better situational awareness.
When a 999 call is received by the Brigade, the caller may be asked if they would like to provide a live video stream of the scene using their smartphone. The Control Officer will send a text message with a secure, one-time-use link that opens a live stream direct from the phone to the Control room.
The Brigade was called at 0154 and the fire was under control by 1516. Fire crews from Hainault, Romford, Dagenham, Woodford and surrounding fire stations attended the scene.
The cause of the fire is under investigation.