The two Koreas, meanwhile, have agreed to hold high-level talks of their own on Wednesday at the truce village of Panmunjom.
Seoul's Unification Ministry says it proposed last week that the two sides meet on Monday, but North Korea only replied this morning and suggested they meet on Wednesday.
South Korea quickly accepted the proposal.
Pyongyang is sending a five-member delegation led by Ri Son-kwon , the head of Pyongyang's inter-Korean affairs committee.
South Korea's delegation will be led by Unification Minister Cho Myoung-gyon and will also be made up of around five members.
Meeting for the first time since last month's summit, the two Koreas are expected to discuss follow-up measures to implement the Panmunjom Declaration as well as schedules for inter-Korean military and Red Cross talks.