SEOUL, Sept 17 (Reuters) - Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, denounced the International Atomic Energy Agency's general assembly that discussed the denuclearization of Pyongyang, state media KCNA reported on Thursday, calling the meeting a "familiar silly talk." 　

"The DPRK's position as a nuclear weapons state is absolute which can not reverse with anything," she said, referring to the full name of North Korea.

(Reporting by Heejin Kim)