Yonhap news agency quoted the ministry spokesperson Choi Hyun-soo at a press briefing, as saying, "We are making preparations for the talks, although no specific schedule has been set yet."
The inter-Korean military hotline is in normal operation, but there's no communication on the agreed-upon military dialogue, she added.
On Sunday, South Korean Prime Minister Lee Nak-yon hosted a lunch session for a high-level North Korean delegation at the Walker Hill Hotel.
The delegation, led by the North Korean ceremonial head of state Kim Yong-nam, includes Kim Yo-jong, the younger sister of Kim Jong-un.
The 2018 Winter Games in Pyeongchang kicked off on Friday with the two Koreas marching under a unified flag in an opening ceremony themed around peace and future.
A joint ice hockey team, comprising of both North and South Korean players will take part in the Winter Games.
North Korea has sent a delegation of 22 athletes to compete in five disciplines, with their women's ice hockey players to compete in a unified Korean team.
The two sides had met at the border village of Panmunjom, located along the heavily guarded Demilitarised Zone (DMZ) for high-level, working-level and military talks respectively.
Also, North Korea sent its own cheerleader squad and an art troupe who are scheduled to perform in the Pyeongchang Winter Games. (ANI)