Beijing ? The top U.S. nuclear envoy met with his Chinese counterpart today as part of the latest round of talks aimed at breaking a deadlock over verification of North Korea’s nuclear programs.

U.S. Assistant Secretary of State Christopher Hill met Wu Dawei, who represents China in six-nation negotiations that also involve both Koreas, Japan and Russia.

The efforts come as Pyongyang is taking steps that indicate it may be reversing its promised disarmament.

Hill, who met with South Korean and Japanese envoys on Friday, said the U.S. was willing to sit down again with representatives from the five other countries. He was scheduled to speak with the Russian ambassador in Beijing later today.