A Chinese Coast Guard vessel (R) passes near the Chinese oil rig, Haiyang Shi You 981 (L) in the South China Sea June 13, 2014. REUTERS/Nguyen Minh/File Photo

A Chinese Coast Guard vessel (R) passes near the Chinese oil rig, Haiyang Shi You 981 (L) in the South China Sea June 13, 2014. REUTERS/Nguyen Minh/File Photo

A Chinese Coast Guard vessel (R) passes near the Chinese oil rig, Haiyang Shi You 981 (L) in the South China Sea June 13, 2014. REUTERS/Nguyen Minh/File Photo

July 11, 2016 3:30 PM (UTC+8)