Sovereignty is indisputable

Chinese governments since ancient times have never given up the exericise of its jurisdiction over South China Sea islands

A series of recent actions taken by Vietnam to disturb and play up the normal drilling of Haiyang Shiyou 981, an oil rig owned by China National Offshore Oil Corporation, in the waters off China's Xisha Islands has put tensions in the South China Sea in the spotlight of worldwide attention.

Hanoi should know that such drilling in the said area is China's sovereign right endowed by the United Nations Convention on the Law of the Sea.