Ri was in possession of an "i-Kad" card, a identification card issued by the Malaysian government to registered foreign workers.

Oriental Daily News, a Malaysian-based Chinese-language daily, reported that Ri has a wife in her 40s, a 17-year-old son and a 10-year-old daughter, citing tenants in his apartment. The neighbors said he was an average father.

Malaysian authorities have already arrested three suspects, including two Asian women, in connection with the death of Kim Jong-nam.

Kim Jong-nam, the eldest son of late North Korean leader Kim Jong-il, who has a different mother from the current leader, was killed in an airport in Malaysia on Monday after being attacked by two women who are suspected to have used some sort of poison.

It has yet to be confirmed whether North Korea was behind the latest killing, but Seoul's spy agency said Wednesday that Kim Jong-un issued a "standing order" to murder his sibling after he assumed power in late 2011.

Meanwhile, Associated Press reported that a second autopsy on Kim Jong-nam started Friday night because the results of the first one were inconclusive, quoting an unidentified Malaysian official.

Still, there are conflicting media reports about an additional autopsy. Oriental Daily News reported that police were planning to perform a second autopsy Saturday, while Reuters reported that Selangor state police chief Abdul Samah "dismissed media reports that a second autopsy would have to be conducted."

A diplomatic row between North Korean and Malaysia over Kim Jong-nam's remains was also brewing. Kang Chol, North Korea's ambassador to Malaysia, demanded that Malaysia immediately hand over the body, accusing Malaysia of trying to deceive the North while colluding with what he calls "hostile forces" trying to do Pyongyang harm.

"We will categorically reject the result of the postmortem conducted unilaterally excluding our attendance," the ambassador said while reading a statement in front of the mortuary of Hospital Kuala Lumpur.

The Malaysia's police chief, Inspector-General Tan Sri Khalid Abu Bakar, has dismissed North Korea's accusation that his government was purposely delaying the process to release Kim Jong-nam's remains, the Bernama reported.

"While in Malaysia, everyone has to obey and follow our rules and regulations ... that includes North Korea," Khalid was quoted as saying, adding that the police must obtain a DNA sample from the Kim Jong-nam family in order to conclude the investigation. (Yonhap)