Moon has said the main objective of his North Korea trip was to break the deadlock in denuclearization talks between the US and the North.

In a joint declaration signed and announced after their two-day talks in Pyongyang, Moon and Kim reaffirmed their efforts to make the Korean Peninsula completely free of nuclear weapons and threats.

The North Korean leader agreed to take additional denuclearization steps, including permanent dismantlement of the country's long-range missile testing facility and launch pads in Dongchang-ri.

The US-North Korea talks have stalled since Trump called off a scheduled trip by his top diplomat, Mike Pompeo, to North Korea, citing a lack of progress in the North's denuclearization process following his historic summit with Kim in Singapore in June. (Yonhap)