China said Tuesday it hopes all parties recognize the positive signs on the Korean Peninsula and resume the six-party talks at an early date.

Foreign Ministry spokeswoman Jiang Yu made the comment responding to a journalist's question regarding a UN report alleging the Democratic People's Republic of Korea (DPRK) and Iran are sharing ballistic missile technology.

Reaffirming China's support for the denuclearization of the Korean Peninsula and the peace and stability of East Asia, Jiang said China wishes to discuss the nuclear issue in a constructive way and maintains close communication and coordination with all parties.

"We hope relevant sides make a concerted effort, take necessary and effective steps to revive the six-party talks and solve the issues within the framework," Jiang said.

Stephen Bosworth, the U.S. special representative for the DPRK, arrived in Seoul late Monday for a three-day trip.

He is expected to meet Tuesday with South Korea's top envoy to the six-party talks, Wi Sung-lac, to discuss resuming the long-stalled talks and the DPRK's recently disclosed uranium enrichment facility.

Bosworth's visit, the first in four months, coincides with a recent flurry of regional diplomatic activity aimed at reviving the stalled negotiations.

South Korea and Japan said they support China's proposal for an inter-Korean dialogue before restarting talks aimed at dismantling the DPRK's nuclear programs.

Former U.S. President Jimmy Carter wrapped up a three-day visit to Pyongyang in late April. He said DPRK leader Kim Jong-il is willing to negotiate without preconditions on any issue with South Korea and members of the stalled nuclear-disarmament talks.