Police have been investigating suspected deliberate manipulation, led by a power blogger nicknamed Druking, of Internet comments posted in a news article carried out by web portal Naver.
Druking and two others allegedly used a software program to jack up the number of clicks in support of critical comments about the liberal Moon Jae-in government, in an apparent attempt to boost negative public sentiment.
Korean political commentator Jung-sik Seo analyses.
[Full details are available on audio news]