Talks on N Korea denuclearisation start

"This is really the first informal meeting of the six-party talks' foreign ministers. This is quite significant," Chinese Foreign Minister Yang Jiechi said in opening remarks.     

"This shows that the six parties have the political will to move forward the six-party talks process," he said. The meeting also involves ministers from Japan, Russia and South Korea.     

Yang said the denuclearisation talks were now at a "critical point" as they wrap up the second stage, which involves verifying North Korea's promises, and move into the third stage