

China claims ownership over virtually the entire strategic waterway despite international rulings that invalidated Beijing’s vast territorial claims, such as that in 2016 by the Permanent Court of Arbitration, an international body based in The Hague.

The disputes in the South China Sea, one of the world’s busiest sea lanes, have long been regarded as an Asian flashpoint and a delicate fault line in the rivalry between the United States and China in the region. Convention on the Law of the Sea, said the official, who spoke on condition of anonymity because of a lack of authority to discuss the government’s actions before they are publicly disclosed. The protest would underscore how the Chinese coast guard ship’s action violated international regulations aimed at avoiding collisions at sea and the 1982 U.N. One of several top Philippine officials dealing with the incident told The Associated Press that the Department of Foreign Affairs in Manila summoned Chinese Ambassador Huang Xilian on Monday morning to convey a strongly worded diplomatic protest. The tense confrontation on Saturday was the latest flare-up in the long-seething territorial conflicts involving China, the Philippines, Vietnam, Malaysia, Taiwan and Brunei. Washington renewed a warning that it is obliged to defend its longtime treaty ally if Filipino public vessels and forces come under an armed attack including in the South China Sea. The United States, the European Union and their key allies including Australia and Japan expressed support to the Philippines and concern over the Chinese ship’s actions. The Philippine military on Sunday condemned the Chinese coast guard ship’s “excessive and offensive” use of a water cannon to block a Filipino supply boat from delivering a new batch of troops, food, water and fuel to the Philippine-occupied Second Thomas Shoal in the disputed waters.

MANILA, Philippines (AP) - The Philippine government summoned the Chinese ambassador on Monday to convey a diplomatic protest over the Chinese coast guard’s use of a water cannon against a Filipino supply boat in the disputed South China Sea, a Philippine official said.
