North Korean leader Kim Jong Un is planning to make his landmark visit to Seoul in December, the head of a South Korean conglomerate said Friday, according to a report.

South Korea's Yonhap news agency quoted CJ Group chief Sohn Kyung-shik, a member of the business delegation that accompanied President Moon Jae-in this past week on his three-day trip to Pyongyang, as telling reporters in New York that Kim would visit before the year's end.

During a joint news conference in Pyongyang on Thursday after Moon and Kim's third summit, the North Korean leader said he made a promise to visit Seoul "in the near future." Moon later added that what Kim meant by "near future" was "this year."