Negotiators failed Saturday to clear final hurdles to a deal for North Korea to start dismantling its nuclear program, but officials held out hope they could resolve lingering disputes over how to compensate Pyongyang for disarming.
After a third day of talks, negotiators had not yet reached agreement on a draft proposal from host China, and more meetings were planned Sunday.
"There are still fairly big differences among the different parties," Chinese Foreign Ministry spokesman Qin Gang told a news conference, adding that discussions had focused on economic and energy assistance to North Korea.
"We do expect to see good progress although we are still likely to face twists and turns," Qin said after a meeting among China, North Korea and the United States. "The talks are still going on in an intensive manner."