South Korea issued a joint statement with the United States, which fought alongside it during the 1950-53 war triggered by a surprise North Korean invasion. The U.S. still stations about 28,500 soldiers in South Korea in what North Korea views as a military threat.
The North Korean warning came as relations between the two Koreas have been strained amid a prolonged deadlock in broader nuclear diplomacy between Pyongyang and Washington.
The Korean Central News Agency said Saturday that he attended a ceremony marking the completion of a fertilizer factory in Suncheon, near the capital of Pyongyang, with other senior officials, including his sister, Kim Yo Jong.
A top South Korean official says his country is confident there have been no “unusual developments” in North Korea, suggesting that rumors about the possible ill health of leader Kim Jong Un are untrue.
Kim Jong Un’s health appears could be more serious than initially believed, according to multiple reports.