China has said its oil rig will continue drilling in contested waters in the South China Sea, despite deadly anti-Beijing riots in Vietnam. The China's top General Fang Fenghui said Beijing cannot afford to lose an inch of territory, blaming Hanoi for stirring up trouble in the region.Speaking in the United States, he also warned that America's efforts to increase it focus on Asia were fuelling tensions. A Chinese worker died in an attack on a steel mill in Vietnam on Wednesday. Almost 150 other people were injured as protesters targeted the Taiwanese mill in the central Ha Tinh province.China's Haiyang Shiyou 981 oil rig was brought into waters west of the disputed Paracel Islands earlier this month, leading to collisions between Vietnamese and Chinese ships as Hanoi sought to block the move.