Inspector-general of police Khalid Abu Bakar today said that police are waiting for North Korean authorities to return four of its citizens who are believed to be involved in the murder of Kim Jong-nam back to Malaysia.

He said this in response to lawyers for the two murder accused - Indonesian Siti Aisyah and Vietnamese Doan Thi Huong - who said that the release of three North Korean suspects may have prejudiced their clients.

"They can say anything they like but we have a case with us. I'm just waiting for the North Koreans to send back the four to us.

"Why are the lawyers making such accusations? You tell the lawyers we are not politicians, we don't do any politics here. We are investigating a case of murder," he told a press conference at Putrajaya today.