Malaysia's Prime Minister Najib Razak said Wednesday his government was engaged in "very sensitive" talks with North Korea over nine Malaysians being prevented from leaving Pyongyang after the assassination of Kim Jong-Nam.
Kim, the estranged half brother of North Korean leader Kim Jong-Un, was poisoned with a lethal nerve agent at the Kuala Lumpur airport on February 13 in a brazen Cold War-style assassination that has damaged bilateral ties.
Three Malaysian embassy staff and six family members are currently stranded in North Korea's capital after both countries recalled their ambassadors and barred citizens from leaving.
"This is a discussion with a government and this is very sensitive," Najib said at a late night press conference, after after chairing a meeting of the ruling Barisan National coalition.
"What is important for us is the result. What we want to achieve is the safety of the Malaysians in Pyongyang and also maintain the image of Malaysia as a sovereign country which upholds the principle of rule of law."
Najib spoke on the eve of a six-day visit to India, with the body of Kim still at a hospital morgue in Kuala Lumpur despite rumours it would be repatriated.
Inspector General of Police Khalid Abu Bakar told reporters at a separate news conference: "In the case of Kim Jong Nam, something is going on. I do not want to say what, just wait for the statement."
South Korea has blamed Pyongyang for the killing, citing what they say was a standing order from Kim Jong-Un to kill his exiled half-brother.
But the North denies this and has denounced Malaysia's investigation as an attempt to smear the secretive regime.
Pyongyang has also refused to confirm the identity of the victim, who was carrying a North Korean passport bearing the name of Kim Chol when he was killed.
It insists that the man died of a heart attack and that the body should be handed over to them.
Malaysia however has officially confirmed his identity using DNA evidence and said it is waiting for his next of kin to claim the body.
Kim's wife and children, living in the Chinese territory of Macau are thought to be in hiding since the murder, with fears his 21-year-old son, Kim Han-Sol, could be targeted next.
Two women -- one Vietnamese and one Indonesian -- have been arrested and charged with the murder.
Airport CCTV footage shows them approaching the 45-year-old victim and apparently smearing his face with a piece of cloth.
Malaysian investigators are seeking seven North Korean suspects, four of whom left Malaysia on the day of the murder.
Malaysia's police chief has said he believes they fled to Pyongyang while the other three are hiding in North Korea's embassy in Kuala Lumpur.