China warns rivals on dispute South China Sea

China warns rivals against turning the South China Sea into a "cradle of war" and threatened an air defence zone there

, after its claims to the strategically vital water were

 declared invalid. 

The China vice foreign minister Liu Zhenmin warned the rivals to not turn the 

South China Sea into a cradle of war.

Zhenmin said that China has the right to establish an air defence identification zone over the sea to give 

Chinese military authority 

over foreign aircraft."