Southeast Asian diplomats say they still hope this week's Asian security summit will provide a chance for North Korea and its neighbors to discuss restarting long-dormant disarmament talks on Pyongyang's nuclear weapons program.

The foreign ministers of North Korea and five other nations involved in stalled nuclear disarmament talks are gathering in Brunei for the Association of Southeast Asian Nation Regional Forum. The international standoff over North Korea's pursuit of nuclear weapons is expected to take center stage, along with other regional issues, including South China Sea territorial disputes.

Still, it's not clear whether North Korea will hold informal talks with the U.S. or South Korea on the forum's sidelines. The governments in Seoul and Washington have said they have no immediate plans to meet with Pyongyang.