The French 'procureur adjoint', during the press conference in France this evening, used the words 'very strong presumption' that the flaperon is from the Malaysian Airlines plane.
He added that this presumption has to be confirmed by other investigations to be made very soon, but he said one cannot tell the exact moment when the results will be known.
He also told about a black bag that has been found a few hours after the flateron, and that will also be given to experts for analysis.
In the first part of his speech, he explained that France was legitimate to make these investigations because the objects were discovered at Reunion island [French territory] and because 4 victims were French people.