Kim Yo Jong (L), the sister of North Korean leader Kim Jong Un, said South Korea would never be a diplomatic partner, stare media reported Wednesday. She is seen here in Tsiolkovsky, Russia, during a state visit in 2023. File Kremlin Pool Photo by Vladimir Smirnov/Sputnik/EPA

SEOUL, Aug. 20 (UPI) -- North Korean leader Kim Jong Un's influential sister repeated her dismissal of Seoul's outreach efforts, state media reported Wednesday, saying that South Korea "cannot be a diplomatic partner."

Kim Yo Jong "sharply criticized the essence of the deceptive 'appeasement offensive'" by the administration of South Korean President Lee Jae Myung, state-run Korean Central News Agency said.

"We have witnessed and experienced the dirty political system of the ROK for decades," Kim told North Korean Foreign Ministry officials during a meeting on Tuesday, using the official acronym for South Korea.

"The ambition for confrontation with the DPRK has been invariably pursued by the ROK, whether it held the signboard of 'conservatism' or wore a mask of 'democracy,'" Kim said.