It is very difficult to know what actually happened in Korea.
The story comes from a well known Western hatred propaganda outlet, the Daily Mail, which quotes the Singaporean Straits Times, another well known pro-business, pro-Western terrorism, anti-people lie factory. Both lack any credibility.
By the way, both the Daily Mail and the Straits Times are among the propaganda outlets supporting the Dalai's terrorist activities, while covering his crimes against his own people, such as his persecution against Dorje Shugden practitioners.