Business North Korea reportedly executes envoy in a purge after failed US summit Updated : May 31, 2019 12:30 PM IST Kim Hyok Chol was reportedly executed in March at Mirim Airport in Pyongyang, along with four foreign ministry executives after they were all charged with spying for the United States. Kim Hyok Chol was seen as a rising star when he was appointed to spearhead working-level talks with US nuclear envoy Stephen Biegun weeks before the Hanoi summit. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.