( Yonhap ) The recent killing of Kim Jong - nam was an act of terror concocted by North Korea ’ s state security and foreign ministries under the command of his half brother and leader Kim Jong - un , Seoul ’ s spy agency said Monday . At a parliamentary briefing , the National Intelligence Service said it has concluded that four officials from the North ’ s State Security Ministry and two from the Foreign Ministry were involved in the Feb . 13 assassination in Malaysia , shifting from its initial view that the Reconnaissance General Bureau was the chief architect of the act .   The suspects had apparently split into two groups each in charge of the poisoning and backup , and separately induced the arrested two women -- a Vietnamese and Indonesian -- before uniting in Malaysia for the murder , lawmakers said . Other participants include an employee each from Koryo Air and a state - run trading firm . “ It was a case of terror directly led by the state security and foreign ministries , a state - led terror , ” Rep . Lee Cheol - woo of the Liberty Korea Party who chairs the parliamentary intelligence committee told reporters after the closed - door session . Rep . Kim Byung - kee of the Democratic Party of Korea said , “ In light of the composition of personnel , the NIS judged that it was a systematically conducted terror by Kim Jong - un . ” The agency ’ s assessment shored up Malaysian authorities ’ interim probe results that found several North Koreans were implicated in the case , including Hyon Kwang - song , a second secretary at its embassy there , and a Koryo Air worker . They said four had fled the country shortly after the killing . The NIS said Hyon works for the State Security Ministry . But the NIS later explained it was still working to determine the prime mover behind the incident , though it did find that many State Security Ministry agents were engaged in the murder . The agency also said Kim Won - hong , the state security minister who the Unification Ministry here said early this month has been sacked , is now under arrest after incurring the young leader ’ s rage for having given false reports . Kim Won - hong had been deemed one of the most powerful persons in the regime , running a secret police and surveillance network across the reclusive nation . But in mid - January , he came under scrutiny from the ruling Workers ’ Party ’ s organization and guidance department over perceived abuse of power and corruption , which led to his dismissal and demotion to a one - star general from four , according to Seoul ’ s Unification Ministry . His sacking triggered heated speculation over a persistent power struggle between the North ’ s state organs . “ At least five vice - ministerial officials of the ministry have also been shot to death by machine gun , and given the ongoing inspection , there are possibilities for further executions of working - level officials , ” Kim Byung - kee added . By Shin Hyon - hee ( heeshin @ heraldcorp . com ) [ 코리아 헤럴드 ] [ K - POP HERALD ] [ 페이스북 ] <ⓒ KoreaHerald ( www . koreaherald . com ) 무단 전재 및 재 배포 금지 >