Kim Jong-un’s sister has warned the South Korean president to keep his mouth shut and stop talking nonsense, rejecting South Korean President Yoon Suk-yeol’s offer of a massive economic aid package if North Korea gives up its nuclear weapons program.

Kim Yo Jong, the brother of North Korean leader Kim Jong Un and a senior official in the country’s ruling party, has called Seoul’s offer of financial aid in exchange for giving up its nuclear weapons an absurd dream.

Kim expressed anger at the state media’s comment on Yoon Suk Yeol’s proposal, saying that no one would trade their fortune for corn cakes.

”It would have been better for his image to shut his mouth than to talk nonsense because he had nothing good to say,” she said.