"The information on the suggestion to hold a visit on December 18-20 is not true. As the president has mentioned, we are open to the visit until the end of the year, and at the beginning of the next year. It depends on the decision of North Korea," the Chunan Ilbo newspaper cited presidential spokesman Yoon Young-chan as saying.
September's summit was the third meeting between Kim and Moon. The two parties signed a military agreement to cease large-scale artillery exercises and military flights near the demilitarized zone at the border between the two Koreas.
If Kim's visit to Seoul takes place at any time in the future, it will become first such visit of a North Korean leader to South Korea since the division of the peninsula in 1945.