A fire close to Heathrow Airport has thrown flights to and from the London airport into chaos with flights from the island of Ireland being heavily impacted.
Heathrow Airport will be closed all day Friday after a fire at a nearby electrical substation that supplies it with power.
At least 1,351 flights to and from UK’s busiest airport could be cancelled on Friday, according to flight tracking website Flightradar24.
Belfast City Airport advised passengers due to fly to Heathrow not to travel to the airport and to contact their airlines.
A number of flights to and from Heathrow are showing as cancelled on Belfast City Airport’s website.
A Heathrow spokesperson said its terminals had to be shut as they “do not have clarity on when power may be reliably restored”.
All flights scheduled between Dublin Airport and London Heathrow up until mid-afternoon Friday have also been cancelled.
A spokesperson for Dublin Airport said further disruption to flights between Dublin and Heathrow scheduled for later on Friday “are likely”.
A total of 34 flights were scheduled between Dublin Airport and Heathrow on Friday.
Dublin Airport advised affected passengers to contact their airline.
Shannon Airport in County Clare has said it has facilitated several diverted flights originally scheduled to land at Heathrow on Friday morning, including flights from Toronto, Atlanta, Bridgetown Barbados, Boston, Orlando and Newark.