MANILA (AFP) - Philippine President Benigno Aquino on Saturday urged fellow Southeast Asian leaders to face up to the threat posed by China's contentious claims to most of the South China Sea as they headed to a regional summit.
Manila filed a case at a UN tribunal in March, challenging Chinese claims to most of the strategic sea.
Mr Aquino said he would discuss the case's regional implications with fellow Association of South-east Asian Nations (Asean) leaders meeting in Myanmar. Even though not all Asean members are involved in maritime territorial disputes with China, Mr Aquino said the issue concerned the security of the region as a whole.
"We wish to emphasise, uphold and follow the rule of law in resolving these territorial issues so that the rights of all countries involved will be recognised and respected," he said in a speech at Manila airport.
"This step mirrors our belief that an issue that affects all countries in the region cannot be effectively resolved merely through a dialogue between two countries," he added. Mr Aquino said the issue concerned the "security" of South-east Asia.
Myanmar is hosting the two-day meeting amid a flare-up of high-seas tensions between Vietnam and the Philippines and regional superpower China, also one of their main economic partners.
China claims most of the South China Sea, including waters and rocks close to the shores of its neighbours, and the Philippines and Vietnam have both accused Beijing of increasingly aggressive moves to assert its claims. These claims also overlap those of Taiwan, as well as Brunei and Malaysia.
The sea is crisscrossed by fishing and shipping lanes and is thought to contain huge oil and gas reserves. Hanoi said this week that Chinese ships that had surrounded a Chinese deep-water oil rig in waters claimed by Vietnam had used water cannon against, as well as rammed, Vietnamese patrol vessels there.
Meanwhile, Manila said it arrested 11 crew members of a Chinese-flagged fishing boat Tuesday for poaching hundreds of protected marine turtles in waters that are part of the Philippines' exclusive economic zone.
China has rejected arbitration in the Philippines' UN case, preferring to settle the issue through bilateral negotiations while insisting its sovereignty over these areas was "indisputable".
The weekend summit in Naypyidaw follows a visit to Asia late last month by US President Barack Obama in which he restated support for Asian allies the Philippines and Japan, which is locked in its own maritime territorial dispute with China.
More than 5,000 US and Filipino troops are currently engaged in annual war games in the Philippines, with a focus on maritime security.