SEOUL - The Republic of Korea's Prime Minister Lee Nak-yon on Sunday hosted a lunch for the high-ranking delegation from the Democratic People's Republic of Korea (DPRK), including the younger sister of top DPRK leader Kim Jong-un.

According to the prime minister's office cited by local media outlets, Lee hosted the luncheon from noon at a hotel in eastern Seoul.

Attending the luncheon were Kim Yo-jong, the DPRK leader's younger sister who serves as the first vice director of the Central Committee of the ruling Workers' Party of Korea, and Kim Yong-nam, president of the Presidium of the Supreme Peoples Assembly who is leading the ranking delegation.

Choe Hwi, chairman of the National Sports Guidance Committee, and Ri Son Gwon, chairman of the Committee for the Peaceful Reunification of the Fatherland, also attended the lunch meeting.

Participants from the side of the ROK were Unification Minister Cho Myoung-gyon, Culture, Sports and Tourism Minister Do Jong-hwan and 10 other government, parliamentary officials and experts.

The four DPRK delegates, who came to South Korea Friday and attended the opening ceremony of the 23rd Winter Olympics, met ROK President Moon Jae-in Saturday at the presidential complex.

The younger Kim, who came here as a special envoy of the DPRK leader, delivered the DPRK leader's invitation for Moon to visit Pyongyang at Moon's convenient time.

The ranking DPRK delegation is scheduled to watch a concert in Seoul, performed by the visiting DPRK art troupe consisted of 140 artists, together with President Moon, before going back to its home country at night via a private jet.