US White House national security adviser Jake Sullivan speaks at a press briefing at the White House in Washington, US, December 12, 2022. (Photo: REUTERS)

The White House hoped the eight hours of talks in Vienna on Wednesday and Thursday between US national security adviser Jake Sullivan and China's top diplomat Wang Yi would pave the way for more communications between the world's two biggest economies, the official said.

China's Washington embassy said the two had "candid, in-depth, substantive and constructive discussions ... on removing obstacles in China-US relations and stabilizing the relationship from deterioration."