Heathrow Airport has completely shutdown and will be closed all day on Friday following a large fire in nearby west London.
Thousands of homes saw their power get knocked out and more than 100 people were evacuated after a transformer at the North Hyde electrical substation caught fire in Hayes, around 6.5 kilometers (4 miles) away.
"To maintain the safety of our passengers and colleagues, Heathrow will be closed until 23h59 on 21 March," Heathrow Airport said in a post on X, adding "passengers are advised not to travel to the airport and should contact their airline for further information.
Flights being diverted worldwide
Scores of flights were already being diverted from Heathrow to other airports, according to flight tracking website FlightRadar24.
Heathrow, Europe's busiest airport, handles more than 80 million passengers a year.
A Qantas flight arriving from Perth, Australia, was diverted to Paris' Charles de Gaulle while a United Airlines flight from New York was due to land in Ireland's Shannon instead, news agencies reported.
Some flights from the US were turning around mid-air and returning to their point of departure, according to Reuters.
A United Airlines flight from San Francisco was due to land in Washington, D.C. rather than London.
British Airways and Virgin Atlantic diverted flights to nearby Gatwick.
Fire Brigade fights serious blaze
London Fire Brigade said 10 fire engines and around 70 firefighters were at the substation.
"The fire has caused a power outage affecting a large number of homes and local businesses, and we are working closely with our partners to minimize disruption," Assistant Commissioner Pat Goulbourne said.
Footage posted to social media showed huge flames and large plumes of smoke coming from the facility.
Fire officials said they were called to the fire around 11.23 p.m. local time on Thursday and crews have been on scene throughout the night.
