According to AP, North Korea went ahead with its nuke test. And according to Korean newspapers, North Korea confirmed it with an official announcement saying the test, performed on 9th, was successful and no radiation leaks were found. A South Korean geological research agency reported that an earthquake measuring 3.6 on the Richter scale originating from the test site in North Korea was detected on 9th at 10:30AM.
The show finally begins. Oy.
Update: Reuters reports that China was notified just 20 minutes before North Korea pressed the button.