“Second and third measures of greater intensity if Washington maintains its hostility” were threatened by Pyongyang Tuesday after its latest nuclear test, the third in a series. North Korea’s “detonation of a miniature atomic bomb” was universally condemned – even China voiced opposition. US officials said North Korea may now be planning to test a missile. US President Barack Obama called North Korea’s third successive nuclear test a "highly provocative act" that "undermines regional stability” and constitutes "a threat to US national security.” The UN Security Council is preparing a resolution of condemnation at a special emergency session.