The official told a parliamentary committee that he had raised concerns about the resilience of Heathrow’s electricity supply just days before a fire forced the airport to shut down.

London Heathrow Airport was warned about possible issues with its power supplies a few days before a nearby fire cut electricity to the hub and forced Europe’s busiest airport into an unprecedented day-long blackout.

Heathrow Airport was warned about the "resilience" of its power supply in the days before a fire which shut down the airport for over a day last month. Nigel Wicking, chief executive of the Heathrow Airline Operators' Committee, told a group of MPs on Wednesday that he spoke to the Team Heathrow director on 15 March about his concerns.