News brief
Fire shuts down Heathrow. A large fire near London’s Heathrow Airport knocked out power to Europe’s busiest flight hub and forced it to shut all day on March 21. It disrupted global travel for hundreds of thousands of passengers and at least 1,350 flights, according to flight tracking service FlightRadar 24. Heathrow planned to resume flights late on March 21, with hopes of returning to a full schedule on March 22. The impact will still likely be felt for several days. Authorities do not know what caused the fire but so far have found no evidence it was suspicious.