North and South Korea have begun discussions over plans for a fourth summit between President Moon Jae-in and DPRK leader Kim Jong Un, the ROK presidential office said on Thursday.

In comments by a senior presidential official at a closed-door briefing to press, the Blue House confirmed "various discussions are taking place" between the two, while declining to say whether the Moon-Kim meeting could take place before next month's planned ROK-U.S. summit in Seoul.