Four fire engines and around 25 firefighters have been called to a fire at a house being used as a suspected cannabis factory on Ampleforth Road in Abbey Wood.
Most of the first floor and roof were destroyed by fire. Eight people from neighbouring properties left their buildings before the Brigade arrived. Fortunately no injuries are reported.
A London Fire Brigade spokesperson said: “Cannabis factory fires can be particularly dangerous because of the way criminals use unsafe wiring to illegally obtain electricity in order to grow the plants.
"They're often in top floors or lofts which means when a fire takes hold it spreads, destroying roofs and damaging neighbouring buildings.
"Firefighters can also be exposed to risks when dealing with the fires because of bad wiring and traps at some of the properties.
"It's important that people know the key signs and inform the police so that they can act swiftly to prevent these dangerous fires from happening."
The Brigade was called at 2115 and the incident was over by 2319. Fire crews from Plumstead, East Greenwich and Bexley fire stations were in attendance.