North Korea's eight member high-level delegation entered South Korea Sunday morning for a three-day trip led by General Kim Jong-tau. They will attend the closing ceremony of the Winter Olympics tonight. Kim is a key official in the North ruling party in charge of handling inter-Korean affairs who stirred controversy with his links to multiple attacks on South Korea. During his time as military intelligence chief, he is accused of master-minded to attacks on South Korea. The first being the sinking of the South Korean warship Tuna in 2010, in which 46 sailors were killed, and the second the artillery attack on Yom Pyong Island in 2010, which killed two civilians and two Marines. His inclusion in the delegation has caused outrage in some quarters. However, his whole-unification ministry said responsibility for the Tuna incident could not be definitively laid on Kim, despite the fact that he led the North spy agency at the time.