National Grid's chief executive has said Heathrow had \"enough power\" from other substations following Friday's fire that caused the airport to shut down.
John Pettigrew told the Financial Times the fire that knocked out a substation was a \"unique event\", but that two other substations remained operational and capable of powering the airport in west London.
Heathrow's chief executive had already said the shutdown it caused was not due to a lack of power, but was due to the time it took to switch from the damaged substation to the other two.
Sir Keir Starmer said that he was \"deeply concerned\" about the incident, and that there were \"questions that need to be answered\" on how it occurred.
Asked if he was embarrassed by the incident, the prime minister told the BBC: \"I don't want to see an airport as important as Heathrow going down in the way it did on Friday, so I'm not comfortable with that for one second.\"
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