A passenger jet made an emergency landing at Heathrow Airport on Thursday morning, missing the runway as it landed.
As you can see in this picture, the under part of the plane and engine were badly damaged in the crash.
All 136 passengers on board were led off the plane to safety. Six people were slightly hurt in the accident.
It was a British Airways flight from Beijing in China to London. The crash also damaged one of its wings.
Six ambulances and all of the airport's fire engines were sent to the scene.
The emergency services sprayed the plane with special foam to stop it from bursting into flames.
Prime Minister Gordon Brown was on another plane at the airport when the accident happened. But his plane wasn't involved in the incident at all.
One person who saw the crash said the plane flew towards the runway at "a funny angle".
Here you can clearly see the damage to the under part of the plane.