LONDON (Reuters) -- Flights at Britain's Heathrow resumed late on Friday after a fire knocked out its power supply and shut Europe's busiest airport for the day, stranding tens of thousands of passengers and causing travel turmoil worldwide.
Heathrow said its teams worked tirelessly to reopen the world's fifth-busiest airport after it was forced to close entirely after a huge fire engulfed a nearby substation on Thursday night, with travelers told to stay away.
