We begin in South Korea where a high-level DPRK delegation has wrapped up its three-day visit and returned to Pyongyang. The leader of the delegation Kim Yong Chol was seen earlier this morning departing from his hotel. He met with President Moon Jae-in and other senior South Korean officials. On Sunday, the DPRK delegation attended the closing ceremony of the Pyeongchang Winter Olympics. CGTN's Ma Ke has more.  

Kim Yong Chol is the leader of the second group of negotiators sent to South Korea during the Olympics. Kim is the head of the DPRK's United Front Department, and is also the Vice Chairman of the Workers' Party of Korea Central Committee. He has been participating in inter-Korean talks since the 1990s, and was the head of a series of military talks with South Korea from 2006 to 2007.  

South Korean President Moon Jae-in was joined by both Kim and Ivanka Trump at the closing ceremony of the Winter Games. Kim and Ivanka Trump had zero interaction during the ceremony.  

Kim had a closed-door meeting with Moon Jae-in, and made a statement through the Presidential Blue House afterwards, saying that the DPRK is willing to hold talks with Washington, by arbitration of South Korea.

As a follow-up step to the closed-door meeting in Pyeongchang, Kim Yong Chol attended a luncheon held in Seoul, with Moon's top security advisor Chung Eui-yong. He agreed to continue cooperation after the Olympics.  

Moon also called for the US and the DPRK to both give ground, so they could try to resolve the crisis surrounding the DPRK's weapons programs.

But the US has stated repeatedly that nuclear disarmament must be the end goal of "any dialogue". This comes after Washington announced its largest package of sanctions to date, on Pyongyang.  

The key to possible US-DPRK talks now lies in which side would back off first.