Airport authorities said they “expect significant disruption” over the coming days, with hundreds of flights and thousands of passengers affected.
“Passengers should not travel to the airport under any circumstances until the airport reopens.”
Images on social media -- which could not immediately be verified by AFP -- showed huge flames and smoke rising from 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 minimise disruption,“ said London Fire Brigade assistant commissioner Pat Goulbourne.
“This is a highly visible and significant incident, and our firefighters are working tirelessly in challenging conditions to bring the fire under control as swiftly as possible,“ a statement said.
80 million a year
The website FlightRadar24 reported a number of diversions already, including a Qantas flight from Perth, Australia, sent to Paris, and a United Airlines flight from New York, which will land in Shannon, Ireland.
Five major airports serve the capital and towns nearby.
It opened in 1946 as London Airport before being renamed Heath Row, a hamlet demolished two years earlier to make way for the construction.
Among its main flight destinations last year were Dublin, Los Angeles, Madrid and New York.
Read More Details
Finally We wish PressBee provided you with enough information of ( London’s Heathrow airport closed after fire causes major power cut )
Also on site :