PYONGYANG, Nov. 29 (Xinhua) -- A fact-finding team from countries to the six-party talks on the nuclear issue on the Korean peninsula concluded its mission and left the Democratic People's Republic of Korea (DPRK) for Beijing on Thursday.

    The team, with a mission on follow up progress in the disablement of the nuclear facilities in Yongbyon, comprises 10 officials and experts from China, South Korea, Japan, the United States and Russia. It visited Yongbyon on Wednesday, said team head Chen Naiqing, who is also China's ambassador for Korean Peninsula issues.

    "We are satisfied with the process of disablement there (Yongbyon), and the denuclearization process is going on smoothly," Chen said.

    "The DPRK's attitude to disablement process is positive," said Im Seong-nam, a team member from South Korea.

    The DPRK shut down the Yongbyon nuclear reactor in July.

    According to a six-party talks joint document released in Beijing on Oct. 3, the DPRK agreed to disable all the existing nuclear facilities and provide a complete and correct declaration of all its nuclear programs by the end of this year.