London's Heathrow Airport temporarily closes due to "significant power outage"

London's Heathrow Airport will be closed Friday after experiencing a "significant power outage" due to a fire at an electrical substation supplying the airport.

London's Heathrow Airport temporarily closes due to "significant power outage"
London's Heathrow Airport will be closed Friday after experiencing a "significant power outage" due to a fire at an electrical substation supplying the airport.