U.S. insists on human control of nuclear weapons, seeks China and Russia's commitment

"We would welcome a similar statement by China and the Russian Federation," Dean said at an online briefing.

"We think it is an extremely important norm of responsible behavior and we think it is something that would be very welcome in a P5 (five permanent members of the United Nations Security Council) context."

Dean's comments come as the administration of U.S. President Joe Biden seeks to deepen separate discussions with China on nuclear weapons policy and the AI growth.

The spread of AI technology came up during talks between U.S. State Secretary Antony Blinken and Chinese Foreign Minister Wang Yi in Beijing on April 26.

Both sides agreed to hold bilateral talks on AI in the coming weeks and exchange views on managing the risks and safety associated with the technology.

In January, the U.S. and China also resumed military communications as part of efforts to normalize military communications, but formal arms control negotiations are not expected any time soon.