Nearly 50 young Filipinos returned today from a remote Philippine-held island in the South China Sea where they had staged a week-long protest against Beijing's claims in the disputed waterway.
The group arrived at Pag-asa island on December 26 as part of an effort to stir up popular opposition to China's claim to most of the contested sea, including Pag-asa, also known as Thitu.
The 47 youths have now returned to Palawan island in the Philippines, Joy Ban-eg, a coordinator of the group, confirmed.
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The end of the trip by the 47 Filipino youths coincided with a fresh flare-up between China and claimant Vietnam over the contested sea, as Hanoi accused the Asian giant of landing a plane on a disputed reef.
Beijing insisted the operation took place within Chinese territory.
The Philippine Department of Foreign Affairs has said it will also file a protest over the incident.
The youth group, organised by a former navy officer, is called Kalayaan Atin Ito, which translates as "Kalayaan, This Is Ours".
"Kalayaan" is the name of a township established by the Philippines in the Spratlys to assert its territorial claim and is also the Filipino word for freedom.
The Philippine government had previously praised the group's "patriotism" but had urged them not to proceed with the trip, while the youth group had accused the Philippine government of not doing enough to stand up to China.
Photographs of the group, posted on their Facebook page, showed the youths camping on the island and posing with patriotic banners.
Reacting to the trip, the Chinese foreign ministry had previously said it was "strongly dissatisfied with the actions and words of the Philippine side."
Despite having one of the weakest militaries in the region, the Philippines has been vocal in challenging China's claims to the South China Sea, a vital sealane and rich fishing ground which is also believed to hold vast mineral resources.