The US special envoy for the Democratic People's Republic of Korea left for Tokyo on May 23 after meeting Chinese officials in Beijing, as tensions on the Korean Peninsula remain high.

Glyn Davies told reporters at the airport that he held good talks with key Chinese officials, including Fu Ying, deputy foreign minister, Wu Dawei, the special representative for affairs on the Korean Peninsula, and Liu Jieyi, deputy minister of the International Department of the Communist Party of China Central Committee.

Asked whether the DRPK will go ahead with another nuclear test, Davies said it would be a highly provocative and inappropriate miscalculation.

"I certainly hope that they will not go ahead with the nuclear test," Davies said, adding that he will keep contact with Chinese officials.

Wu told China Central Television on May 22 that both China and the US are worried about the current situation on the Korean Peninsula.

It is the common interest and responsibility of China and the US to maintain peace and stability on the peninsula, and China opposes any action from any party that will make the situation more complicated, Wu said after meeting with Davies.

The DPRK's foreign ministry spokesman told the official Korean Central News Agency on May 22 that it would "bolster its nuclear deterrent as long as the United States was continuing its hostile policies".

The DPRK planned "countermeasures" following pressure from Washington, KCNA said.