N'April 2009, akụkọ pụtara na North Korea aghọwo "ike nuklia zuru oke", echiche nke onye isi oche International Atomic Energy Agency (IAEA) General Director Mohamed ElBaradei na-ekerịta. Na May 25, 2009, North Korea mere nnwale nuklia nke abụọ, na-ebute mgbawa a na-eme atụmatụ na ọ dị n'agbata 2 na 7 kilotons. A na-eche na nnwale nke 2009, dị ka ule nke 2006, mere na Mantapsan, Kilju County, na mpaghara ugwu ọwụwa anyanwụ nke North Korea. A chọpụtara nke a site na ala ọma jijiji nke mere na ebe a na-anwale ule. Na February 2012, North Korea kwupụtara na ọ ga-eme ka uranium dị na Yongbyon Nuclear Scientific Research Center ma ghara ịga n'ihu nyocha ọ bụla nke ngwá agha nuklia mgbe mkparịta ụka na-aga n'ihu na United States na-aga n'ihu. Nke a gụnyere nkwekọrịta ogologo oge na-arụpụta ngwa agha nuklia na-arụpụta.
Mantapsan, Kilju County