BEIJING, May 23 (Xinhua) -- U.S. Assistant Secretary of State Christopher Hill will visit China on Wednesday and Thursday for exchange of views with the Chinese side on the six-party talks, said Foreign Ministry spokesman Liu Jianchao here Tuesday.

    Hill, also the U.S. chief negotiator for the six-party talks on the Korean nuclear issue, will talk with Chinese Vice Foreign Minister Wu Dawei on promoting the six-party talks.

    "At present, the six-party talks faces difficulties, even severe problems," Liu said. He called on all parties concerned to take flexible and pragmatic attitude, give play to political wisdom, clear obstacles to resumption of the talks and promote positive progress out of the talks.

    The six-party talks, composing China, the Democratic People's Republic of Korea (DPRK), the United Sates, the Republic of Korea (ROK), Russia and Japan, has been in a stalemate since the first phase of the fifth round of talks ended in November last year.

    A Chairman's Statement was issued at the end of the first phase talks, in which parties concerned agreed to resume the talks as soon as possible. Enditem