The shutdown comes amid rising rhetoric and threats of attack from Pyongyang in response to U.N. punishment for its December rocket launch and February nuclear test.
SEOUL, South Korea (AP) North Korea reacted swiftly to U.N. punishment for its December rocket launch, warning Wednesday that the regime would push ahead with strengthening its defenses including its nuclear weaponry as concerns grow that Pyongyang may conduct another atomic test.
It will also be complicated by North Korea's warning of unspecified "second and third measures of greater intensity, " a threat that comes as Washington and others push for tightened U.N. sanctions as punishment for the Feb. 12 atomic test, the North's third since 2006.