A flight tracker captured chaos ensuing in the skies after a huge fire at a west London electricity substation forced Heathrow Airport to close.
A large fire at a west London electricity substation forced Heathrow Airport to close, causing over 1,350 flights to be diverted or cancelled. The airport is expected to remain closed until midnight on Friday, with British Airways advising passengers not to travel there. Around 150 people were evacuated as firefighters tackled the blaze.