The Dutch Safety Board will decide whether to open its own inquiry when the airline's investigation is finished, van der Weegen said.

CNN: Dutch 737 pilot locked out of cockpit while co-pilot sleeps

But despite dominating the game, Enyimba did not open scoring until the 87th minute, when substitute Omolade Ajibade finished off a smooth move.

BBC: SPORT | Football | African | Violence mars Enyimba victory

Kaymer finished seventh in the Open at St Andrews earlier this year when he closed with three successive bogeys.

BBC: Martin Kaymer wins Dunhill Links Championship