Chief U.S. nuclear envoy Christopher Hill has met with his Russian counterparts on North Korea's nuclear programme. His visit to Moscow comes amid concerns over the North's failure to present a full declaration of its nuclear activities by the end of 2007

Hill says the next round of six-party talks on the Asian state's nuclear programme could take place this month.

North Korea claims it has provided the U.S. with the declaration, but Washington denies it has received a complete account.

Speaking at a media conference after the talks, Assistant Secretary of State Christopher Hill said:

“They [North Korea] are obliged to give a complete and correct declaration. That means a declaration that would cover all their nuclear materials, all their nuclear facilities and all their nuclear programmes, and any nuclear co-operation they have with anyone.”

Russia's chief negotiator on North Korea, Deputy Foreign Minister Aleksandr Losyukov said Moscow is fulfilling its commitments to the six-party agreements.

“We are providing some assistance to North Korea as it was agreed during six-party talks. Russia is in the final stage  of finalization of deliveries of oil,” he said.  

Losyukov said Russia will finish supplying 50,000 tonnes of fuel oil for North Korea on January 20 or 21.