Malaysian police arrested a woman Wednesday in the apparent assassination of Kim Jong Nam, the North Korean leader's exiled half-brother who South Korean spies say once begged his sibling to spare his life.
Malaysia rejected the request and had yet to decide whether to hand over to North Korea the body of Kim Jong Nam, 46, who died after a mysterious assault at Kuala Lumpur airport on Monday.
'Police are looking for a few others, all foreigners, ' it added.
An account of the death from police spokesman, Fadzil Ahmat, suggests that the victim was poisoned with a cloth.
However, the South Korean MPs briefed by the intelligence officials, have said North Korea had long prepared for the murder of Kim.
"The government is certainly judging that the murdered person is certainly Kim Jong Nam", the ministry's spokesman, Jeong Joon-hee, said in Korean at a press briefing in Seoul.
Kim Jong Il died in December 2011, when Kim Jong Un took power. The idea that Kim Jong-nam would be targeted for assassination isn't new in itself.
Kim Jong Nam, the older half brother of the DPRK leader, was known to spend a significant amount of his time outside the country and had spoken out publicly against his family's dynastic control of the isolated state. "Now there is even a theory that he was a kind of "second choice" for China, so that if necessary it would be possible to use Kim Jong-nam to create a new order in North Korea".
Kim Jong-nam was the subject of a book My Father, Kim Jong-Il and Me in 2012, written by Japanese journalist Yoji Gomi who encountered his subject by chance in 2004 and wrote the book after hours of interviews and hundreds of emails.
Four vehicles from the North Korean Embassy in Malaysia were also seen leaving the premises at 8pm.
The estranged half-brother of North Korean (Democratic People's Republic of Korea) leader Kim Jong Un has been killed in Malaysia, a South Korean government source told Reuters yesterday.
Those women are at large, according to the outlet, which cited multiple South Korean government sources.
Speaking to CBS News, Malaysian police would only say that the cause of death for the 46-year-old was now listed as "sudden death".
"The other possibility that can not be ruled out is that of North Korean elites, who are competing against each other to show their loyalty to Kim Jong Un, making a move against Kim Jong Nam".
He was close to his uncle Jang Song-thaek, once the North's unofficial number two and political mentor of the current leader. Kim Jong Nam's death may further strain that alliance.
China and North Korea have historically been allies, but the relationship has grown tense in the past decade as North Korea has ramped up its nuclear power.