Negotiators from six countries have sat down for a second day of nuclear talks in Beijing.

At the talks underway at Diaoyutai State Guesthouse, China, Japan and Russia will present their respective views on ways to resolve North Korea's nuclear standoff.

On the first day of discussions on Wednesday, the United States proposed that North Korea agree to a series of nuclear disarmament measures over a three-month period in return for economic benefits and an easing of its diplomatic isolation.

Meanwhile, South Korea has proposed offering crude oil if Pyongyang begins to freeze its nuclear facilities.

In Washington, White House spokesman Scott McClellan said that once North Korea agrees to the U.S. proposal, it would receive non-nuclear energy assistance, including oil and food, and some assurances on the security side as well.

McClellan said the plan is based on the Libyan disarmament model. In December, Libya committed to dismantle its weapons of mass destruction and has since won economic and diplomatic rewards as it has moved toward that goal.