The main opposition Liberty Korea Party (LKP) filed a complaint with the prosecution against the embattled FSS chief, claiming taking the costly trips amounted to bribery, abuse of power and the breach of public officials' ethics rules.
The minor Bareunmirae Party called for parliamentary and prosecutorial investigations into Kim, while warning it could also consider seeking an independent counsel probe into his case "if necessary."
In-depth analysis with Korean political commentator Jung-sik Seo is available on audio news.