At around 12:30pm local, an American Airlines Airbus A330 flight 731 to Charlotte (USA) was evacuated at London Heathrow airport terminal 3.
@BBCBreaking pic.twitter.com/tKUPMtSERl
— Ross Hiscock (@rosshiscock) June 26, 2016
About 12 passengers evacuated the aircraft by the emergency slides few mins after boarding due to smoke in the cabin.