A second piece of suspected plane debris has washed ashore on the Indian Ocean island of La Réunion as a wing part found nearby suspected to have come from missing flight MH370 arrived in France for analysis.

The discovery of the metallic object on Sunday — reported on a local radio station as being a possible door of a plane — follows confirmation from authorities that a piece of aircraft debris washed up on La Réunion and found on Wednesday is from a Boeing 777, raising hopes that it comes from the missing Malaysia Airlines aircraft that disappeared 17 months ago.

But police say the debris found on Sunday is not yet being treated as evidence and one Malaysian official cast doubt on it being related to MH370, telling the Associated Press that it was not a door but a domestic ladder.