Officials from South Korea's top rights body have met some of the 12 North Korean waitresses at the centre of a blazing row between Seoul and Pyongyang to determine whether they were tricked or coerced into coming to Seoul in 2016.
"We have interviewed some of the waitresses," an official at the commission told AFP on condition of anonymity.
"We plan to meet the others as well if they are willing to talk to us," he said, declining to give details.
The probe follows a call by Tomas Ojea Quintana, the United Nations' Special Rapporteur on human rights in the North, who asked Seoul to carry out a "thorough and independent investigation" and to "hold to account those who are responsible".
In a bombshell revelation in May, the manager of the restaurant where the waitresses worked said that he had lied to them about their final destination and blackmailed them into following him to the South.
Fearing exposure in 2016, he asked his NIS handler to arrange his own defection. But at the last minute his minder threatened to report him to the North Koreans unless he brought the waitresses with him.
Seoul's Unification Ministry has previously said the waitresses defected to the South of their own free will.
But Pyongyang has repeatedly insisted the women were abducted, while rights activists in the South have demanded an investigation.
Lawyers for a Democratic Society, an influential group of human rights lawyers, who have made unsuccessful attempts to interview the women, said those responsible should be given "stern punishment". The waitresses must be allowed to return home and reunite with their families, it said.
In an interview with the New York Times published at the weekend, Heo said Seoul had promised to keep the "defections" secret to protect the North Koreans' families.
But it reneged on the deal once they landed in the South, where their arrival in April 2016 made headlines as the largest group arrival in years.
Heo has also said that Seoul had promised him rewards -- an NIS job and a medal -- which had not materialised.
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