
South Korean presidential spokesman Kim Eui-kyeom welcomes the North Korean government’s decision to shut down its Pyunggye-ri nuclear test site between May 23-25 during a press briefing at the presidential office in Seoul on May 13, 2018. (Yonhap)

South Korean presidential spokesman Kim Eui-kyeom welcomes the North Korean government’s decision to shut down its Pyunggye-ri nuclear test site between May 23-25 during a press briefing at the presidential office in Seoul on May 13, 2018. (Yonhap)

North Korea’s top leader Kim Jong-un looks at a photo of his grandfather and the North’s founder, Kim Il-sung, hung at a state guest house on Bangchuidao Island of China’s northern city of Dalian in this photo captured from the North’s Korean Central TV on May 9, 2018. Kim met with Chinese President Xi Jinping in Dalian during his visit there from May 7-8, the second such meeting in just over 40 days. Bangchuidao Island is a seaside resort that was often used in the past for secret North Korea-China leaders’ meetings. (Yonhap)

President Moon Jae-in (L) attends an event to plant a tree at the South Korean embassy in Tokyo on May 9, 2018. (Yonhap)

U.S. Pacific Air Forces Commander Gen. Terrence O’shaughnessy (R) reviews the military at the Gyeryongdae military complex in South Chungcheong Province on May 9, 2018. On his right is Gen. Lee Wang-keun, South Korea’s Air Force chief of staff. (Photo courtesy of the Air Force) (Yonhap)

The national flags of South Korea (R) and North Korea (2nd from R) are raised next to each other at the medal ceremony of the World Team Table Tennis Championships in Halmstad, Sweden, on May 5, 2018, in this photo from the Korea Table Tennis Association. The two Koreas formed a unified team during the championships and won a bronze medal. It was the second time that they played as a single squad after the championships in Chiba, Japan, in 1991. (Yonhap)

Kim Sung-tae, floor leader of the main opposition Liberty Korea Party, is attacked in the face in front of the National Assembly in Seoul on May 5, 2018, in this photo captured from cable channel MBN. The attacker hit Kim in the chin as he was walking up the stairs and later told the police he was angry at the opposition party for causing a parliamentary stalemate. Kim has been on a hunger strike from May 3, demanding an independent counsel probe into an online opinion rigging scandal implicating a ruling party legislator. (Yonhap)

Choi Soon-sil, the confidante of ousted President Park Geun-hye, arrives at the Seoul High Court on May 4, 2018, to attend a hearing for her appeals trial over a string of corruption charges that led to Park’s ouster. In February, the Seoul Central District Court sentenced Choi to 20 years in prison for abusing power for personal financial gain and other crimes. (Yonhap)

This photo, taken May 5 2018, shows vehicles stuck in a traffic jam on one side of the Gyeongbu Expressway, which links Seoul with southern areas, as travelers leave the city to celebrate Children’s Day. (Yonhap)

Students of Dongseo University’s nursing college in Busan, southeast of Seoul, take the Nightingale Pledge on May 3, 2018. The students usually take the pledge in their third year at school before they go out into the field for on-site training. (Yonhap)

Two Siberian tigers — a 13-year-old female named Hancheong and a seven-year-old male named Uri — stroll in a “tiger forest” in the National Baekdu-daegan Arboretum, located on a mountain range in Bonghwa, a town in South Korea’s southeast province of North Gyeongsang, on May 3, 2018. The Korea Forest Service opened the arboretum, which was established on a 27,600-square-meter site, making it one of the largest of its kind in Asia. The establishment of the tiger forest is part of the country’s efforts to preserve the endangered species in the wild. (Yonhap)