The Chinese military organized naval and air forces on Tuesday to warn off a United Sates destroyer that intruded into China's territorial waters off the Xisha Islands in the South China Sea, according to a military spokesman.
China will take all necessary measures to safeguard its sovereignty, rights and interests in the South China Sea, Foreign Ministry spokesman Geng Shuang said on Tuesday.
Sansha, China's southernmost island city, which administers vast island groups and their surrounding waters in the South China Sea.
The ministries of natural resources and civil affairs published on Sunday the official names of some of the islands, reefs and seafloor geographical entities in the South China Sea.
Research vessel Tan Kah Kee of Xiamen University has sailed to the South China Sea for a 35-day scientific expedition.
A Chinese spokesman on Tuesday refuted the Vietnamese claim concerning the Xisha and Nansha Islands, stressing the Xisha and Nansha Islands are Chinese territory.
When whales die and sink to the ocean floor, their carcasses — known as whale falls — provide a bounty of nutrients for other creatures of the deep.