WASHINGTON, 08 October 2021, (TON): The United States and China have agreed in principle for their presidents to hold a virtual meeting before the end of the year, a senior US administration official said on Wednesday, after high-level talks aimed at improving communication between the two countries.

The closed-door meeting at an airport hotel in the Swiss city of Zurich between US national security adviser Jake Sullivan and China's top diplomat Yang Jiechi was their first face-to-face encounter since an unusually public and acrid airing of grievances in Alaska in March.

US officials had suggested that the meeting was a follow-on from President Joe Biden's September 9 call with Chinese President Xi Jinping, prior to which the world's top two economies appeared to have been locked in a stalemate.

The White House said that Sullivan raised concerns about contentious issues such as China's actions in the South China Sea, as well as on human rights and Beijing's stances on Hong Kong, Xinjiang, and Taiwan.

At the end of the day, however, both Beijing and Washington said the talks, which lasted six hours, were constructive and candid. The US side said the tone was very different from Alaska.

The US official told reporters "we do have out of today's conversation an agreement in principle to hold a virtual bilateral [summit] meeting before the end of the year.”

Asked for further details, White House spokeswoman Jen Psaki said: "We're still working through what that would look like, when and of course the final details we don't quite have them yet."