Power has been restored to some properties near Heathrow Airport, the London Fire Brigade said, as firefighters battle the electricity substation blaze.
Part of a transformer remains on fire, the fire department said, while the airport is shut, causing major global travel disruptions.
โThe fire has caused a power outage affecting a large number of homes, local businesses and Heathrow airport. Power has been restored to some properties and we are continuing to work closely with our partners to minimize disruption,โ Assistant Commissioner Pat Goulbourne said.
An investigation into the cause of the fire is ongoing, according to the fire department. (CNN)
