Will MH370 flaperon reveal more clues?

Part of the aircraft wing found on Reunion Island is from the missing MH370 plane, Malaysian Prime Minister Najib Razak has confirmed.

Mr Najib said international experts examining the debris in France had "conclusively confirmed" it was from the aircraft.

French prosecutor Serge Mackowiak later confirmed the wing fragment, known as a flaperon, was from a Boeing 777 - the same make and model as the missing Malaysian airliner.

The BBC's Richard Westcott explains where a flaperon is found on a plane and outlines the implications that the discovery will have on the search for the rest of the aircraft.