FILE - Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, attends a wreath-laying ceremony at Ho Chi Minh Mausoleum in Hanoi, Vietnam, March 2, 2019. (Jorge Silva/Pool Photo via AP, File)

FILE - North Korean leader Kim Jong Un's younger sister Kim Yo Jong, center, arrives at the Jinbu train station in Pyeongchang, South Korea, Feb. 9, 2018. (AP Photo/Lee Jin-man, File)