US Secretary of State Mike Pompeo said yesterday that North Korean leader Kim Jong Un understands that denuclearisation must happen "quickly", but he warned there are still risks that peace will not be achieved and sanctions must be maintained for now. Washington remained committed to the "complete, verifiable and irreversible" denuclearisation of North Korea, Pompeo said, after the historic US-North Korea summit in Singapore drew criticism for its vague wording on plans for Pyongyang to give up its nuclear weapons.

"We believe that Kim Jong Un understands the urgency... that we must do this quickly," he said of the effort to have North Korea abandon its atomic arsenal. Washington's top diplomat travelled to Seoul to brief his South Korean and Japanese counterparts about the summit, and later flew to Beijing to talk with Chinese officials. "We truly believe that we have a path forward after so many years that can bring peace," Pompeo told Chinese Foreign Minister Wang Yi. "There are still risks that we won't achieve that, but I truly do believe that the world set the conditions properly" at the summit, he said, after Trump said his "deal" with Kim Jong Un had ended the North Korean nuclear threat.