London's Heathrow airport closed after emergency landing

Both runways were closed at London's Heathrow airport on Friday, a spokeswoman said, after a British Airways plane reportedly had to make an emergency landing.

As of now the southern runway is open and all passengers have been safely evacuated from the aircraft.

"All passengers and crew have been safely evacuated from an aircraft which is on the northern runway", said the spokeswoman.
"The incident involved one plane. Everyone has been safely evacuated."

Smoke was seen emerging from the plane as it tried to take off, according to reports.

Heathrow is one of the busiest international passenger airports in the world.