South Korea: North Says It 'Purged' Defense Chief Hyon Yong Chol is out; Gen. Pak Yong Sik is in By Newser Editors and Wire Services Posted Jul 13, 2015 8:45 AM CDT 10 comments Comments This July 18, 2012, file photo shows Vice Marshal Hyon Yong Chol applauding during a meeting announcing North Korean leader Kim Jong Un's new title of marshal in Pyongyang, North Korea. (Jon Chol Jin) (Newser) – North Korea has officially confirmed the purging of its defense chief two months after Seoul's spy service said he had been executed for disloyalty to leader Kim Jong Un, a South Korean official said today. South Korea's National Intelligence Service told lawmakers in May that People's Armed Forces Minister Hyon Yong Chol was killed by anti-aircraft gunfire for talking back to Kim, complaining about his policies, and sleeping during a meeting. The North's state media hasn't mentioned Hyon or his disappearance since, but over the weekend, the country's official Korean Central News Agency named army Gen. Pak Yong Sik as the armed forces minister in a dispatch about a meeting with a Lao military delegation. South Korean Ministry of Unification spokesman Jeong Joon-Hee told reporters today that this confirmed Hyon's replacement and purging. Since taking power in December 2011, Kim has orchestrated a series of executions, purges, and personnel reshuffles in what analysts say is an attempt to bolster his grip on power. Some experts say repeated bloody power shifts indicate the young leader is still struggling to establish himself. South Korean officials say 70 North Korean officials have been executed since Kim's inauguration. The most notable execution before Hyon's happened in 2013 when Kim had his uncle and No. 2, Jang Song Thaek, executed for alleged treason. Pak, known as a top official at the General Political Bureau of the Korean People's Army, is considered one of Kim's closest associates and is among the officials who've accompanied Kim on various public activities.