US official accuses Russia and China of blocking Asia leaders' statement

WASHINGTON (Reuters) - Russia and China blocked a proposed consensus statement for the East Asia Summit drafted by Southeast Asian countries, mainly over objections to language on the contested South China Sea, a U.S. official told Reuters on Saturday.

A draft statement arrived at by consensus by the 10-nation Association of Southeast Asian Nations was put to the 18-nation East Asia Summit meeting in Laos on Thursday evening, the official said.

"ASEAN presented this final draft and said that, essentially, this was a take-it-or-leave-it draft," the official said on condition of anonymity.

The United States, Japan, Australia, South Korea and India all said they could support it, the official said, adding: "The Russians and the Chinese said that they could not and would not proceed with a statement."

Russian Foreign Minister Sergei Lavrov told a news conference in Vientiane on Friday the final declaration had not been adopted because of "persistent attempts by the United States, Japan, South Korea, Australia and New Zealand to turn it into a purely political statement."

China's Washington embassy did not immediately respond to a request for comment.

The U.S. official said there were a couple of issues of contention, but the key one was how it referred to the UN Convention on the Law of the Sea (UNCLOS), going further than in the previous 2023 EAS statement.

However, the official said, "there was certainly no language that was getting into the nitty gritty of any particular standoff, no language that was favoring any claimant over any other."

China claims nearly all of the South China Sea and has stepped up pressure on rival claimants, including several ASEAN countries, notably the Philippines. ASEAN has spent years negotiating a Code of Conduct with Beijing for the strategic waterway, with some ASEAN states insisting it be based on UNCLOS.

China says it backs a code, but does not recognize a 2016 arbitral ruling that said its claim to most of the South China Sea had no basis under UNCLOS, to which Beijing is a signatory.

According to a draft seen by Reuters, the proposed EAS statement contained an extra sub-clause over the 2023 approved statement, and this was not agreed to. It noted a 2023 U.N. resolution saying that UNCLOS "sets out the legal framework within which all activities in the oceans and seas must be carried out."

Another sub-clause not agreed said the international environment, including "in the South China Sea, the Korean Peninsula, Myanmar, Ukraine and the Middle East ... present challenges for the region."

(Reporting by David Brunnstrom in Washington; Editing by Don Durfee and Matthew Lewis)