North Korea’s Kim Yo Jong said South Korea can’t be trusted as a diplomatic partner. She criticized South Korean President Lee Jae Myung, saying he’s not capable of making real change. Her comments were shared by North Korea’s official news agency after a rare meeting with top foreign ministry officials.

Kim mocked President Lee’s recent promise to rebuild trust and restart a 2018 military agreement between the two Koreas. She called it a “pipe dream” and said relations will not improve the way South Korea hopes. She also accused Seoul of being dishonest—talking about peace while holding joint military drills with the U.S.

She told North Korean diplomats to respond quickly to what she called South Korea’s hostile actions, though she didn’t say what those responses would be. Her statement came after Kim Jong Un warned that the joint U.S.–South Korea exercises show they are preparing for war, which he says justifies North Korea’s push to build more nuclear weapons.