State media is reporting that despite U.N. warnings, North Korea successfully denonated a nuclear device. The confirmation comes after suspicious seismic activity was detected in North Korea early Tuesday, sparking speculation and reports that the rogue nation had conducted another nuclear test. The earthquake happened in an area that does not see natural seismic actions, and is near North Korea's nuclear facility. A spokesman for South Korea's defense minister said Tuesday that there was a high possibility of a nuclear detonation, and that Pyongyang had confirmed the activity to Seoul and Washington. The U.S. government did not immediately comment on what it had heard from the North Korean government.