Washington (CNN) North Korean hackers allegedly stole classified military documents from a South Korean Defense Ministry database in September 2016, according to Rhee Cheol-hee, a member of South Korea's National Assembly. Rhee, who belongs to the ruling Democratic Party and sits on the Defense Committee, told CNN on Tuesday that he received information about the alleged hacking from the Defense Ministry. He said the documents stolen included the South Korea-US wartime operational plan and a document that includes procedures to "decapitate" the North Korean leadership. About 235 gigabytes worth of military data was stolen by the hackers, Rhee said. When asked about Rhee's comments by reporters at a daily press briefing on Tuesday, a spokesman from South Korea's Defense Ministry declined to comment, saying the information is classified.Rhee Cheol-hee said the documents stolen included the South Korea-US wartime operational planAbout 235 gigabytes worth of military data was stolen by the hackers, Rhee said
In 2013, when _'s banks and broadcasters were attacked, that government blamed its neighbor to the north.