Fuel supplies were a condition for Pyongyang to begin implementing measures as part of the first stage of its denuclearization.
Six nations engaged in protracted talks on North Korea's nuclear disarmament gathered for a new round of negotiations in the Chinese capital Thursday after a six-month break.
Envoys from the United States, China, Russia, Japan and South and North Koreas are expected to finalize a timeline for Pyongyang to shut down all its nuclear facilities and provide full data on its nuclear programs in exchange for aid and diplomatic incentives.
This would be the second phase of disarmament since the North closed its main nuclear reactor in July under the February six-party deal.
On Thursday, the first day of talks due to last until Sunday, the heads of the five working groups set up to encourage Pyongyang to give up its nuclear ambitions reported the outcomes of discussions held in August-September, a source close to the negotiations said.
The talks are taking place against the backdrop of suspicions that Pyongyang is providing nuclear technology to other countries. Media reports have said Israeli aircraft could target a joint Syrian-North Korea nuclear facility in Syria. Both Syria and North Korea have denied the reports. Israel has not given any official confirmation.
The disarmament talks have continued for over three years. North Korea successfully conducted nuclear bomb tests last October.
