An air, land and sea search was launched around an island in the Indian Ocean on Thursday following the discovery of an airplane fragment deemed to be a "major lead" in the hunt for missing Flight MH370.
Beaches were being combed and boats were scouring the waters off Reunion Island as helicopters flew overhead the French territory, east of Madagascar off the southern tip of Africa.
The barnacle-covered plane piece was found by a crew cleaning the coastline on Wednesday.
Boeing investigators have looked at photos of the fragment and say that they believe it is from one of their 777s, sources told NBC News. It appears to be a piece of a flap from a wing. There is only one such aircraft missing in the world right now — Malaysia Airlines Flight MH370.
Local media also reported Thursday that the remains of a suitcase had also been found in the same area where the debris was recovered. Officials did not immediately comment on the reports.
"This is obviously a very significant development," Australian Deputy Prime Minister Warren Truss told a news conference in Sydney early Thursday.
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"It's the first real evidence that there is a possibility that a part of the aircraft may have been found. It's too early to make that judgment, but clearly we are treating this as a major lead," the deputy prime minister said. "It is credible that wreckage from the search area could've reached Reunion Island."
The plane wreckage is roughly 6.5 feet to 8 feet in length, according to photographs. It appeared fairly intact and did not have visible burn marks or signs of impact.
Truss told reporters that a number stamped on the piece of debris would help to identify it.
Professor Charitha Pattiaratchi, of the University of Western Australia Oceans Institute, told APTN that finding a piece of the debris on Reunion was "entirely consistent with current patterns in the Southern Indian Ocean to be originated from the area that they're doing the current search for the wreckage."
He added: "It would not surprise me if more debris will be washing up in that part of the region in the coming weeks."
"If the wreckage is identified, what that does is give some degree of closure to the families who are waiting for information," he said. "If it can be established beyond doubt that the aircraft has gone into the water then that helps people to understand what happened."