business Heathrow Airport closes all day over power outage BBC Mar 21 3m read It comes in response to a "significant" outage linked to a fire at a nearby electrical substation. www.bbc.com Related stories world #NewsWorld Up to 300,000 passengers facing cancellations as U.K.'s Heathrow Airport closes due to fire CBC Mar 21 5m read
world #NewsWorld Up to 300,000 passengers facing cancellations as U.K.'s Heathrow Airport closes due to fire CBC Mar 21 5m read
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