** N.Korea Claims 'Successful' Nuclear Test**
North Korea says it has "successfully" carried out a third nuclear test, in defiance of U.N. warnings to stop developing its atomic weapons program.
State media Tuesday said the underground test used a "lighter, miniaturized nuclear bomb" with greater explosive force than previous tests. It said the test was in response to what it called the "reckless hostility" of the United States.
U.N. Secretary General Ban Ki-moon immediately condemned the "deeply destabilizing" move, calling it a "clear and grave violation" of international sanctions.
U.S. President Barack Obama called the test "highly provocative," saying it threatens U.S. security and international peace. He called for "swift and credible" action by the international community.
China, North Korea's main ally, expressed what it called "firm opposition" to the test.
Diplomats say the U.N. Security Council will meet early Tuesday in New York to come up with a response.
**Blast Kills 12 at Syria-Turkey Border **
Turkish media say the explosion of a car near the border between Turkey and Syria has killed at least 12 people and wounded nearly 30 others.
Officials say three of those killed were Turkish and the rest were Syrians.
Turkey's NTV news channel says the blast occurred Monday on Turkish soil, about 40 meters from the Cilvegozu border crossing in the southern province of Hatay.
Deputy Prime Minister Bulent Arinc said authorities are investigating all possible causes for the blast.
Several reports are quoting local mayor Huseyin Sanverdi as saying a Syrian-registered car is believed to have been at the center of the blast.