Participants of the six-party talks in Bejing, on the second day of negotiations, have expressed a willingness to provide energy aid to North Korea if the communist state agrees to dismantle all its nuclear programs.

Seoul's chief envoy to the talks, Deputy Foreign Minister Lee Soo-hyuck, said in a news conference China and Russia have agreed to the proposed deal while the U.S. and Japan signalled their "understanding".

Lee said, however, North Korea must meet first conditions that the freeze include its nuclear program based on highly enriched uranium, that it must be fully verified and that the freeze should lead to complete dismantlement in the shortest possible time.

Lee said the period of the nuclear freeze would be equal to the that required for parties to draft a written agreement on complete dismantlement, and that the period, range and verification method of the nuclear freeze would be decided at the same time.