President Moon Jae-in is reportedly considering one-on-one talks with North Korea's nominal head of state, who is set to visit South Korea this week to attend the Winter Olympics in Pyeongchang.

North Korea notified Seoul on Sunday that it will send a high-level delegation led by Kim Yong-nam, the president of the Presidium of the Supreme People's Assembly, from Friday to Sunday.

A presidential official said on Monday that President Moon will have natural encounters with Kim, beginning with the Olympic opening ceremony, but it has yet to be decided whether the two will hold a one-on-one meeting.

Another presidential official also said it has not been decided yet whether Moon will hold a one-on-one meeting with Kim because his visit has just been announced. 

Kim is expected to attend Friday's opening ceremony as well as a preliminary round match of a unified women's ice hockey team of the two Koreas on Saturday. On Sunday, he is expected to attend a performance that the North's art troupe will be holding in Seoul.

President Moon is likely to meet spontaneously with Kim if he decides to attend these events.