Dutch investigators found that it was definitely a BUK missile that hit flight MH17. It hit the front of the plane from the left and was launched from somewhere in an area of 320 sq km in Eastern Ukraine, Mr Joustra says.
Mr Joustra says that in the opinion of the Dutch Safety Board, there was sufficient reason to close airspace above eastern Ukraine as a precaution at the time. Ukrainian authorities did not do so, he says.
Mr Joustra's presentation has now finished. He said that one of its conclusions was that states involved in civil conflict must do more to protect civil aviation