A fire at a suspected cannabis factory in Ealing caused damage to the structure of a building on Willow Road. 

At 1.50pm on Monday 15th May, 40 firefighters were called to a house on Willow Road in Ealing after receiving nine calls about the fire. 

The cause of the fire is still under investigation by the London Fire Brigade and Metropolitan Police, but the fire was at the residence of a suspected cannabis factory. 

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 fire caused damage to half of the first floor and roof of a semi-detached two storey house which had been converted into flats. 

Fire crews from Heston, Park Royal, Richmond, Acton, Hammersmith and Southall fire stations attended the scene and the fire was brought under control by 4.29pm.