Heathrow airport in London keeps its doors closed all day on Friday. Due to a fire in an electric substation, the largest passenger airport in Europe is without electricity. The fire is now under control, but there is no insight into it when the damage can be repaired. The airport will in any case remain closed until Friday evening midnight local time. Because of the size of the incident, the anti -terror unit of the police is in charge of investigating the cause of the fire.
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