Russia’s deputy foreign minister, Igor Morgulov, met with China’s foreign affairs vice-minister and North Korea’s foreign vice-minister to discuss the three countries’ cooperation during the denuclearization process. (photo: Soe Than Win/AFP/Getty Images)

The three also demanded that denuclearization be carried out in a "stage-by-stage and simultaneous way" and emphasized the importance of confidence-building in the process.

The demands are part of the consensus that North Korea's Vice Foreign Minister Choe Son-hui reached with her Russian and Chinese counterparts, Igor Morgulov and Kong Xuanyou, during their first-ever trilateral talks in Moscow on Tuesday.

The KCNA said the three parties reaffirmed the will for denuclearization of the Korean Peninsula and establishment of a peace regime there.

The three diplomats called for easing the sanctions in response to "significant and practical steps" that the North has taken in denuclearization.