(adds detail on ElBaradei visit to North Korea; Gaddafi) BEIJING, March 3 (Reuters) - China's foreign minister on Saturday urged diplomatic persistence as a deadline looms for implementing the first steps of a deal to unwind North Korea's nuclear weapons programme. Under a breakthrough agreement signed on Feb. 13, North Korea agreed to move toward nuclear disarmament in exchange for aid and the prospect of improved ties with the United States and other powers. The deal gave Pyongyang 60 days to shut down the reactor at the heart of its nuclear ambitions and open it to international inspections. It also required working groups on normalising of U.S.-North Korean relations and other contentious issue meet within 30 days. Chinese Foreign Minister Li Zhaoxing urged the six countries that signed the agreement to play their part, but he also called for diplomatic give and take. "We hope that they will act according to the agreement," Li told reporters on the sidelines of the annual meeting of the Chinese People's Political Consultative Conference. "Of course, it isn't always easy and difficulties will come up," he said, adding problems should be dealt with through "diplomatic means". International Atomic Energy Agency chief Mohamed ElBaradei will go to Pyongyang on March 13 for a two-day visit to discuss the mechanics of the deal. The disarmament agreement reached at talks in Beijing, brought together the two Koreas, China, the United States, Japan and Russia. At the time of the deal, the chief U.S. envoy Christopher Hill said deadlines should be strictly obeyed. Hill also said Washington would resolve within 30 days a dispute over frozen North Korean bank accounts in Macau. The U.S. had said that Pyongyang used a Macau bank as a conduit for illicit earnings. U.S. Deputy Secretary of State John Negroponte arrived in Beijing on Saturday for talks with Chinese officials that will cover North Korea and other security issues. U.S. and North Korean officials will meet in New York next week for preliminary discussions on normalising of relations after decades of confrontation. However, while Washington has urged North Korea to follow the example of Libya, Muammar Gaddafi says his country has not been properly compensated for scrapping its nuclear arms programme and therefore doubts whether other counties will follow his lead. He said the West had failed to transform his weapons programme into nuclear power. "Libya is disappointed because the promises given by America and Britain so that we could give up our capabilities were not fulfilled," the BBC Web site quoted the Libyan leader as saying. "And therefore those countries said 'we are not going to follow Libya's example because Libya abolished its programme without any compensation'," he added.
