WASHINGTON - Less than 36 hours after announcing a successful underground nuclear test, North Korea fired off two more short-range missiles early Tuesday morning off its eastern coast.
A South Korean news agency reports that the rogue regime is also preparing to launch a third missile.
What should the international community do to put a stop to North Korea's nuclear ambitions? Click play to hear more from Daveed Gartenstein-Ross, vice president of research at the Foundation for Defense of Democracies, following this report.
Also, CBN News Terrorism Analyst Erick Stakelbeck gives his insight here.
The latest round of tests puts an exclamation point on North Korea's declaration of defiance, as the international community tries to figure out how to deal with the growing threat.
Monday's nuclear test set off a firestorm of international criticism. The U.N. Security Council unanimously condemned the tests and is looking into a new round of sanctions.
"The members of the Security Council have decided to start work immediately on a Security Council resolution on this matter, in accordance with the Security Council's responsibilities under the Charter of the United Nations," U.N. Security Council President Vitaly Churkin said.
Some see Pyongyang's provocative act as a way for the ailing Kim Jong Ill to assert his influence in lining up a successor.
Others believe North Korea is simply returning to its regular tactic, threatening nuclear advancement as leverage for future talks with the U.S. and a trade-off for aid. Aid was cut last month after the regime tested a long-range missile.
"They want survival above all and they want a strategic relationship with the United States, which gives them absolute security from any fear that we will attack them," Donald Gregg, former U.S. Ambassador to South Korea, said.
President Obama characterized the test as a direct challenge to the will of the international community.
"We will work with our friends and our allies to stand up to this behavior and we will redouble our efforts toward a more robust international nonproliferation regime that all countries have responsibilities to meet," Obama said Tuesday.
South Korea now says it will join a U.S. led effort to stop countries like Iran and North Korea from acquiring weapons of mass destruction.
"By this nuclear test, we are going to not only cooperate with US, but also with the other six-party-talks participating nations like Japan, China and Russia," South Koream President Lee Myung-bak said. "And we are going to take previously unseen counter measuring actions."
But the North has warned it would consider participation in the initiative as a declaration of war.
South Korea's government stresses that its decision is not a threat against the North.
Meanwhile, a spokesman for Myung-Bak said that President Obama has assured South Korea of U.S. protection.