A South Korean news report about a possible nuclear test conducted by North Korea
PYONGYANG, North Korea -- North Korea says it has tested a "miniaturized" nuclear device in defiance of U.N. orders to stop building atomic weapons.
Official state media reported Tuesday that it was conducted in a safe manner.
This third nuclear test could take North Korea closer to its goal of building a nuclear warhead small enough to be mounted on a long-range missile.
White House calls the nuclear test 'highly provocative.'
UN Security Council to meet on North Korean test
The U.N. Security Council will hold an emergency meeting Tuesday morning on North Korea's nuclear test.
South Korea's U.N. Mission says the closed-door meeting will begin at 9 a.m. (1400 GMT). South Korea joined the Security Council in January for a 2-year term and currently holds the council's rotating presidency.
South Korea's Foreign Minister Kim Sung-hwan is in New York to preside over a council meeting scheduled to begin at 10 a.m. (1500 GMT) on the protection of civilians in armed conflicts.