Kim Jong-un's sister, Kim Yo-jong will visit South Korea to attend the Winter Olympics opening ceremony on Friday, according to Seoul's Unification Ministry.
Pyongyang notified Seoul that Kim Yo-jong would be accompanying North Korea's nominal head of state, Kim Yong-nam, along with two other senior officials, said the ministry.
North Korean Leader Kim Yo-jong's Sister to visit South Korea for Winter Olympics
The two other officials are the chairman of the National Sports Guidance Committee, Choe Hwi, and the head of the North's agency, Ri Son-gwon in charge of inter-Korean affairs, according to South Korea's Yonhap News Agency.
The statement was the first confirmation a member of the North's ruling family would be included.
Last year, 28 years old Kim Yo-jong was promoted by her brother to be an alternate member of the decision-making political bureau of the ruling party's central committee.
Analysts said the move showed that Kim Yo-jong's activities were more substantive and more important than previously thought.
Kim Yo-jong is now believed to be one of Kim Jong-un's closest confidants.