WASHINGTON -- Air safety investigators have a "high degree of confidence" that a photo of aircraft debris found in the Indian Ocean is of a wing component unique to the Boeing 777, the same model as the Malaysia Airlines plane that disappeared last year, according to a U.S. official said Wednesday.

Air safety investigators -- one of them a Boeing investigator -- have identified the component as a "flaperon" from the trailing edge of a 777 wing, the U.S. official said.

A French official close to an investigation of the debris confirmed Wednesday that French law enforcement is on site to examine a piece of airplane wing found on the French island of Reunion, in the western Indian Ocean. A French television network was airing video from its Reunion affiliate of the debris.

The U.S. and French officials spoke on condition that they not be named because they aren't authorized to speak publicly.

At the United Nations, Malaysian Transport Minister Liow Tiong Lai told reporters that he has sent a team to verify the identity of the plane wreckage.

"Whatever wreckage found needs to be further verified before we can ever confirm that it is belonged to MH370," he said.

If the debris turns out to be from Malaysia Airlines flight 370, it will be the first major break in the effort to discover what happened to the plane after it vanished on March 8, 2014, with 239 people on board while travelling from Kuala Lumpur in Malaysia to Beijing. A massive multinational search effort of the South Indian Ocean, the China Sea and the Gulf of Thailand came up dry.

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Hinnant reported from Paris. Associated Press writer Edith Lederer at the United nations contributed to this report.