By Richard Roth and Jethro Mullen
The U.N. Security Council is expected to meet Tuesday to consider a proposed resolution to authorize more sanctions against North Korea following the secretive regime's controversial nuclear test last month.
Pyongyang said the underground nuclear blast it conducted on February 12 was more powerful than its two previous detonations and used a smaller, lighter device, suggesting advances in its weapons program.
It was the first nuclear test the isolated state has carried out since its young leader, Kim Jong Un, inherited power in December 2011 after the death of his father, Kim Jong Il, who made building up North Korea's military strength the focus of his 17-year rule.
Like the regime's previous tests in 2006 and 2009, the move prompted widespread international condemnation, as well as a promise of tough action at the United Nations.
The United States and China, a key North Korean ally, have been negotiating for weeks on the wording of a proposed Security Council resolution.FULL STORY