"So we hope that those people will respond and come forward to claim the body".
Deputy Prime Minister Ahmad Zahid Hamidi said Wednesday the test was done using a sample obtained from one of Kim Jong Nam's children.
The body was secretly taken out of the morgue for the embalming on Sunday night, avoiding the attention of dozens of media representatives stationed outside.
The murder, and Malaysia's investigation of it, has sparked a diplomatic meltdown between two countries with once strong ties.
Malaysia is "looking into all possibilities" to secure the freedom of the nine Malaysians now stranded in North Korea.
The deputy prime minister said the two countries are still negotiating, but did not elaborate.
They were among 176 North Koreans working in Sarawak.
On Tuesday, Malaysia said it will deport 50 North Koreans for overstaying their visas, despite its recent ban on North Koreans leaving the country.
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He was carrying a passport under the name of Kim Chol when he was killed.
A 2014 United Nations report detailed the use of political prison camps, starvation and executions, saying security chiefs and possibly even Supreme Leader Kim Jong-un himself should face global justice.
Kim Jong Nam is known to have at least three children, Kim Han Sol, who was recently said to have featured in a short video about his father's death, as well as another son and daughter.
According to Zahid, Malaysia has sought the return of nine of its citizens stranded in North Korea through high-level talks with North Korea since Monday. It expelled the North Korean ambassador over his remarks questioning the investigations.
Kim, 45, was attacked in the Kuala Lumpur International Airport February 13 as he prepared to board a flight to Macau.
Washington and Seoul were trying to tarnish the North's image and bring down its social system, Kim said on late Monday in NY.
Two women, an Indonesian and a Vietnamese, have been charged with murder but say they were conned into thinking they were taking part in a harmless prank.