UN condemns nuclear test as North Koreans celebrate
12 February 2013 Last updated at 23:12 GMT
The United Nations has strongly condemned North Korea's decision to carry out a third nuclear test.
Nuclear monitors based in Vienna said the underground explosion had double the force of the last test in 2009.
In a statement, the Security Council said the action posed a "clear threat to international peace and security".
The US has promised to "augment the sanctions regime" against Pyongyang.
However locally, the news appeared to be celebrated.
The BBC's Damian Grammaticas reports