It said troops in the area will be on high alert at all times, and will defend national sovereignty, security and maritime rights.

The patrols also aim to deter activities that disrupt the South China Sea and create "hot spots," the military said on its Southern Theater Command's Wechat account.

The maneuvers come as China faces rising tensions in the region, especially with the Philippines. Both countries have recently traded numerous accusations over high-profile maritime confrontations.

Last week, the Philippines said it was not provoking conflict in the South China Sea, responding to China's accusation that Manila was encroaching on Beijing's territory.

China has repeatedly warned the Philippines of breaching areas of the South China Sea it considers its own territory. China claims almost the entire South China Sea, while the Philippines refers to the part of South China Sea within its exclusive economic zone as the West Philippines Sea.

China also said the Philippines has relied on U.S. support to continually provoke China.

(Reporting by Beijing Newsroom; Writing by Bernard Orr; Editing by Andrew Heavens, Alexandra Hudson)