China's Maritime Safety Administration says the country will hold seven-day military drills around disputed islands in the South China Sea from Tuesday.

The exercises will overlap with Wednesday's expected ruling by an international arbitration court on China's sweeping claims in the South China Sea.

China is boycotting the case brought before The Hague-based Permanent Court of Arbitration.

The Philippines is challenging the validity of the nine-dash line that China uses to demarcate its claims to most of the South China Sea.

The Maritime Safety Administration on Sunday gave coordinates for where the exercises would be held, which run from the east of China's Hainan Island and encompass the Paracel Islands. They are controlled by Beijing but also claimed by Vietnam and Taiwan.