Malaysian officials said on Sunday that they are seeking additional North Korean suspects surrounding the killing of Kim Jong Nam, North Korean leader Kim Jong Un’s half brother. “I do not deny that there are more North Koreans involved in the murder of Kim Jong Nam,” national police chief Khalid Abu Bakar said. “I do not want to say more than that. If I do, they may run ... but we believe there is an important person too.” Seven North Koreans are already being sought in the killing, which occurred at Malaysia’s Kuala Lumpur airport last month when two women rubbed a nerve agent on Kim’s face. Officials believe that three of the seven men are hiding inside North Korea’s embassy in Kuala Lumpur, while four of them are believed to be in Pyongyang.