The tiny French Indian Ocean territory has been under intense scrutiny since a beach cleaner found a washed-up wing part last week, which Malaysian Prime Minister Najib Razak later declared was part of the Boeing 777 that mysteriously vanished 17 months ago.
The flaperon is currently being examined by experts in France for clues as to the last moments of the Malaysia Airlines aircraft that inexplicably veered off course en route from Kuala Lumpur to Beijing, and there are hopes that Reunion may yield more debris.
Dominique Sorain, the top government official in Reunion island, told reporters that a military transport plane was patrolling the seas off the coast and a ship had also departed before being forced to return due to bad weather.
He added that helicopters would also be used, as would soldiers and policemen who will patrol the eastern part of the island where the flaperon was discovered.
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"This... Will last a week, after which we will draw our first conclusions," Sorain said.
Since the discovery of the two-metre-long flaperon last week, people on the island have come forward with countless objects they think may look like plane parts.
Malaysian Transport Minister Liow Tiong Lai said yesterday that more possible MH370 objects -- aircraft seat cushions and windows -- had been discovered on Reunion island, but that any link "had to be verified by the French authorities."
A French judicial source however said French investigators had not received any new items.
The Boeing 777 disappeared on March 8 last year, sparking the largest search operation in history, now focused on the southern Indian Ocean based on satellite data hinting at the plane's path.
"The finding of this piece of wing gives us hope that we are searching in the right location, given the tides and currents and drift patterns," Foreign Minister Julie Bishop told Australian television from Malaysia.
French prosecutors involved in the analysis of the flaperon have however been more cautious, saying only that there was a "very high probability" it came from the Boeing 777.