2009 North Korean nuclear test

The 2009 North Korean nuclear test was the underground detonation of a nuclear device conducted on Monday, May 25, 2009 by the Democratic People's Republic of Korea. This was its second nuclear test, the first test, a fizzle, having taken place in October 2006. Following the nuclear test, Pyongyang also conducted several missile tests. A scientific paper later estimated the yield as 2.35 kilotons.