US concerned about China's risky sea actions, Blinken warns ASEAN

US Secretary of State Antony Blinken told Southeast Asian leaders Friday that the US is concerned about China's increasingly dangerous and unlawful activities in the disputed South China Sea during an annual summit meeting, and pledged the US will continue to uphold freedom of navigation in the vital sea trade route.

The 10-member Association of Southeast Asian Nations' meeting with Blinken followed a series of violent confrontations at sea between China and ASEAN members Philippines and Vietnam, which have fueled concerns that China's increasingly assertive actions in the waterways could spiral into a full-scale conflict.

China, which claims almost the entire sea, has overlapping claims with ASEAN members Vietnam, the Philippines, Malaysia and Brunei, as well as Taiwan. About a third of global trade transits through the sea, which is also rich in fishing stocks, gas and oil.

Beijing has refused to recognize a 2016 international arbitration ruling by a U.N.-affiliated court in the .