The influential sister of North Korean leader Kim Jong Un has rebuffed outreach by South Korea’s new liberal government, saying that North Korea has no interests in talks with South Korea for whatever proposal its rival offers.

Experts say the comments suggest that North Korea has no plan to return to diplomacy with South Korea and the U.S.

The presidential office on Monday pushed back against North Korean official Kim Yo-jong’s remarks rejecting talks with South Korea, emphasizing that it is “closely observing the North’s position.”