The United States said on Thursday the Declaration of Principles, which the six-party talks on nuclear issues on the Korean peninsular are making, should be a document that makes it clear what the obligations of all parties concerned are.

"We can't have a situation where the DPRK (Democratic People's Republic of Korea) pretends to abandon its nuclear weapons program and we pretend to believe them," deputy State Department spokesman Tom Casey said at a news briefing.

"We certainly want to have a declaration that... makes it clear what the obligations of all parties are," Casey said.

The spokesman spoke highly of China's positive role in hosting the six-party talks that also involves the DPRK, the United States, the Republic of Korea, Japan and Russia.

"The Chinese have been doing, we think, an outstanding job of trying to move forward on this process," Casey said.

The fourth round of the six-party talks resumed on July 26 after a delay of 13 months.

All sides are striving to forge a common document in this longest-ever round, which is supposed to set forth basic principles for resolving the Korean Peninsula nuclear issue.

Source: Xinhua