FM Yun urges int ' l cooperation to punish N . Korean leader GENEVA , Feb . 27 ( Yonhap ) -- South Korea ' s foreign minister on Monday appealed to the international community for close cooperation to punish North Korean leader Kim Jong - un , citing a recent murder case highlighted by the use of toxic agents . It represents " not only the breach of intentional human rights norms but also a brazen challenge to international order based on rules , " Foreign Minister Yun Byung - se said in a keynote speech at the U . N . Human Rights Council meeting and the Conference on Disarmament underway in Geneva . He pointed out that the North Korean leader ' s half brother was " cruelly " assassinated at a Malaysian airport two weeks ago . The minister did not mention the names of Kim Jong - un or his half brother Kim Jong - nam . But it marked the first time that a top South Korean government official raised the murder case on the global stage . South Korean Foreign Minister Yun Byung - se in a file photo . ( Yonhap ) Two Asian women allegedly rubbed VX nerve agent on his face . The substance is classified by the U . N . as a weapon of mass destruction . South Korea ' s intelligence community believes that the Kim Jong - un regime , notorious for its reign of terror , is behind the killing . Kim has apparently viewed Jong - nam as a potential obstacle to his pursuit of a life - time authoritarian rule , according to North Korea watchers . Yun took issue of the North ' s worsening human rights record , calling it a potential threat to peace and security of the whole world . He added that more than 100 senior North Korean officials have been executed without proper trials over the past five years . Besides that , 80 , 000 - 120 , 000 people remain held at concentration camps in the communist nation . " The entire country of North Korea has become a vast concentration camp , " he said . He emphasized that the member states of the council should take " independent and collective " steps to address the North ' s human rights abuse before it ' s too late and triggers a bigger catastrophe . He welcomed a group of experts ' recommendation that the U . N . bring the human rights issue to the International Criminal Court . lcd @ yna . co . kr ( END )