North Korean leader Kim Jong Un's sister repeated her dismissal of Seoul's outreach efforts, saying that South Korea "cannot be a diplomatic partner."

North Korea is stepping up criticism of South Korea's new President Lee Jae Myung as he prepares for his first summit with President Donald Trump.

By Joyce Lee SEOUL (Reuters) -North Korea's Kim Yo Jong, the powerful sister of leader Kim Jong Un, said South Korea and its President Lee Jae Myung had a "dual personality" by talking about wanting to pursue peace while holding joint military drills with the U.