South Korean protesters stage a rally demanding a peaceful resolution of the North Korean nuclear crisis near the U.S. embassy in Seoul, South Korea, Tuesday, Feb. 19, 2013.The European Union imposed trade and economic sanctions on North Korea while condemning "in the strongest terms" the nation's latest nuclear test.(AP Photo/Ahn Young-joon)

Geneva - North Korea threatened South Korea with “final destruction” during a debate at the UN Conference on Disarmament on Tuesday, and warned that it could take “second and third steps” after a nuclear test last week.

“As the saying goes a new born puppy knows no fear of a tiger. South Korea's erratic behaviour would only herald its final destruction,” South Korean diplomat Jon Yong Ryong told the meeting. - Reuters