WASHINGTON, June 6 (Xinhua) -- A U.S. official will travel to the Democratic People's Republic of Korea (DPRK) next week to discuss the DPRK's disablement of its nuclear plants, the State Department said Friday.

    Sung Kim, director of the office of Korean affairs at the State Department, will leave Washington on Sunday for Seoul, where he will meet with South Korean and Chinese officials, and then travel to Pyongyang on Tuesday, State Department spokesman Sean McCormack said.

    Kim will "talk to the North Korean six-party representatives about issues related to disablement," McCormack said.

    Kim visited the DPRK in May and the DPRK handed over its nuclear documents to him in Pyongyang on May 8. The documents are believed to be detailed technical logs from the DPRK's shuttered plutonium reactor.

    Under an agreement reached at the six-party talks in Beijing in February last year, the DPRK agreed to abandon all nuclear weapons and programs and declare all its nuclear programs and facilities by the end of 2007, in exchange for diplomatic and economic incentives.

    However, the DPRK missed the deadline despite reported progress in its nuclear disablement and declaration.

    The United States has urged the DPRK to fully declare its nuclear programs and activities.