“He was accused of spying for the United States for poorly reporting on the negotiations without properly grasping U.S. intentions,” the source was quoted as saying.
The February summit in the Vietnamese capital of Hanoi, the second between Kim and Trump, failed to reach a deal because of conflicts over U.S. calls for complete denuclearization of the Korean peninsula and North Korean demands for sanctions relief.
Reuters was unable to independently confirm the report. Previously, some North Korean officials have reportedly been executed or purged only to reappear with a new title.
U.S. State Department officials said they had no information to confirm the report.
A spokeswoman at South Korea’s Unification Ministry declined to comment. An official at the presidential Blue House in Seoul said it was inappropriate to comment on an issue that should first be verified.
A diplomatic source told Reuters there were signs Kim Hyok Chol and other officials were punished for the breakdown of the summit, such as by being sent to a labor camp for reeducation, but there was no evidence they were executed.
Kim Yong Chol, Kim Jong Un’s right-hand man and the counterpart of U.S. Secretary of State Mike Pompeo before the Hanoi summit, had also been sent to a labor and reeducation camp in Jagang Province near the Chinese border, the Chosun Ilbo reported.
Key officials who worked with Kim Yong Chol have been out of the public eye since the summit, while seasoned diplomats who previously appeared to have been sidelined, including vice foreign minister Choe Son Hui, were seen returning to the spotlight.
RISE AND FALLKim Hyok Chol was seen as a rising star when he was appointed to spearhead working-level talks with U.S. nuclear envoy Stephen Biegun weeks before the Hanoi summit.
However, little was known about his expertise or the role he undertook during those talks. The other four executed alongside him included diplomats working on Vietnam relations, the Chosun report said.
“This is a man who might provide some tactical advice to the leader but is otherwise a message bearer with little negotiating or policymaking latitude,” said Michael Madden, a North Korea leadership expert at the Washington-based Stimson Centre.
“Instead, they put in someone like Kim Hyok Chol to insulate Choe Son Hui and more substantive diplomatic personnel, to a certain degree he is expendable and his superiors are not.”
Among the penalized officials were Kim Song Hye, who led preparations as part of Kim Yong Chol’s team, and Sin Hye Yong, a newly elevated interpreter for the Hanoi summit. They were said to have been detained in a camp for political prisoners, the newspaper said.
The diplomatic source said Kim Song Hye’s punishment seemed inevitable because she was a “prime author” of the North’s plan to secure sanctions relief in return for dismantling the Yongbyon main nuclear complex.
Kim Song Hye had also worked closely with Kim Yo Jong, the North Korean leader’s younger sister and a senior party official whom Kim Song Hye accompanied to South Korea for the Winter Olympics last year.
Kim Yo Jong was also lying low, the paper reported, citing an unidentified South Korean government official.
Madden, however, said Kim Yo Jong’s status remained unchanged as Kim Jong Un’s top aide, citing her attendance at key party meetings in April and appearance in state media reports.
Sin was charged with making critical interpretation mistakes that included missing an unspecified “last-minute offer” the North Korean leader supposedly made as Trump was about to walk out, Chosun reported.
North Korea’s official party mouthpiece Rodong Sinmun warned on Thursday that “two-faced” officials would face the “stern judgment of the revolution”.
“It is an anti-Party, anti-revolutionary act to pretend to be revering the leader in front of him when you actually dream of something else,” it said in a commentary.
“There are traitors and turncoats who only memorize words of loyalty toward the Leader and even change according to the trend of the time,” it said.
The newspaper accused Jang Song Thaek, Kim Jong Un’s uncle, of committing “anti-party, anti-revolutionary acts” after he was executed in December 2013.
Hong Min, a senior fellow at the Korea Institute for National Unification in Seoul, said it was possible Kim Hyok Chol and other officials faced some penalty but further verification was needed.
“Executing or completely removing people like him would send a very bad signal to the United States because he was the public face of the talks and it could indicate they are negating all they have discussed,” Hong said.