News program about the death of Kim Jong Nam, the older half-brother of the DPRK leader and the eldest son of late leader Kim Jong Il, is seen on TV at the Railway Station in Seoul, South Korea. (Xinhua/Yao Qilin)

KUALA LUMPUR, Feb. 17 (Xinhua) -- Malaysian police are working on a DNA profiling of Kim Jong Nam, the elder half-brother of the top leader of Democratic People's Republic of Korea (DPRK), a senior police officer said on Friday.

Abdul Samah Mat, the police chief of Selangor state told Xinhua that they will ask the DPRK embassy in Malaysia to provide the DNA samples from Kim Jong Nam's next-of-kin, which will be used for a positive identification to prove the relationship.

Kim died at the Kuala Lumpur airport on Monday. Next-of-kin may include brothers, sisters and maybe kids, said Abdul, who is leading the criminal investigation in the case.

DNA samples may include blood, saliva and other body fluids in criminal investigation.

Malaysian Deputy Prime Minister Ahmad Zahid Hamidi speaks during a press conference in Putrajaya, Malaysia, on Feb. 16. 2017. (Xinhua)

Malaysian Deputy Prime Minister Ahmad Zahid Hamidi confirmed Kim's identity on Thursday, telling reporters at the briefing that Malaysian authorities will, per international laws, ask the next-of-kin of the deceased to claim the remains after the investigation procedures.