Four fire engines and around 25 firefighters attended a boat fire near Otley Terrace in Lea Bridge.
A canal boat was destroyed by fire. There were no reports of any injuries.
Firefighters implemented a water relay system as part of firefighting operations. The appliances were stationed between the incident site and the nearest water hydrant, and then connected together by hose. This allowed crews to pump a constant supply of water to the scene of the fire.
A 25-metre cordon was put in place and firefighters cooled four gas cylinders to an ambient temperature as a precaution, as some cylinders can explode when exposed to heat.
The Brigade was called at 2235 and Control Officers mobilised crews from Homerton, Stoke Newington, Bethnal Green and Leytonstone fire stations to the scene. The fire was extinguished by 0105.
The cause of the fire is under investigation by the Brigade and Metropolitan Police.