Six fire engines and around 40 firefighters from Southall, Hayes, Heston and Hillingdon fire stations were called to a fire at a range of warehouses on Brent Road in Southall last Saturday (22 January) at 3:33pm.
Part of a single-storey warehouse unit was damaged by the fire which was under control by 4:28pm.
There were no reports of any injuries.
The cause of the fire is under investigation by the Metropolitan Police Service and the London Fire Brigade.
