Member nations of the six-party nuclear negotiating group ended two days of working group talks in Beijing Tuesday.

Emerging from the talks, a South Korean official said the six countries reached a consensus that the aim of their negotiations is the eventual dismantlement of North Korea's nuclear weapons program.

He said the parties shared the opinion that higher-level delegates will continue specific discussions on the freeze and subsequent verification of North Korea's nuclear facilities as a first step toward their complete dismantlement.

The official said he expects more authoritative and substantial discussions to happen at the third round of six-nation nuclear talks opening in the Chinese capital on Wednesday.

Meanwhile, South Korea's delegation, led by Deputy Foreign Minister Lee Soo-hyuck, arrived in Beijing on Tuesday. He said Seoul will seek support for its "three-stage" proposal to resolve the 20 month-old nuclear standoff.

The proposal seeks initial verbal promises to address mutual concerns, followed by reciprocal actions and finally normalization of diplomatic ties between North Korea and the United States after the dispute is resolved.

The standoff began in October 2002, when the U.S. accused North Korea of running a secretive program to develop nuclear weapons in violation of previous agreements.