China News Service, February 25. According to the website of the Hainan Maritime Safety Administration, the Hainan Maritime Safety Administration issued a navigation warning on the 25th: From February 27 to March 1, 2022 in the South China Sea, from 1100 to 1500 every day, at 19-37.12 Military training is carried out in a circular area with N/110-57.32E as the center and a radius of 6 nautical miles, and it is forbidden to enter.