Debris that washed up on the coast of Mozambique could be part of the wreckage from Malaysia Airlines Flight 370, which vanished almost exactly two years ago, Malaysian officials said on Wednesday.

If the debris, which was discovered over the weekend, came from the plane — a Boeing 777 that was en route to Beijing from Kuala Lumpur, Malaysia — it would add to the theory that the plane went down in the southern Indian Ocean. Airplane debris was found in July on Réunion, a French island in the Indian Ocean. French investigators concluded “with certitude” that the debris — a piece of an aircraft wing known as a flaperon — came from the Malaysia Airlines Boeing 777. No other Boeing 777 is known to be missing.

NBC News, citing unidentified sources, reported on Wednesday that the debris had washed up over the weekend on a sandbank of the Mozambique Channel — the body of water that separates the southeast African nation from Madagascar. Réunion is to the east of Madagascar, and it is roughly 1,500 miles from the Mozambique coast.

Image A piece of metal that washed up on the coast of Mozambique. Credit... Blaine Gibson/ATSB

NBC News reported that investigators in Malaysia, Australia and the United States were analyzing photographs of the object, which had the words “no step” on it and could be from the horizontal stabilizer, a winglike mechanism attached to the plane’s tail.