BEIJING, Aug. 5(Xinhuanet)-- Delegations from the Democratic People's Republic of Korea (DPRK) and the United States failed to narrow their differences in a one-on-one meeting Friday morning, according to the delegation of the Republic of Korea (ROK).

Ri Gun, the DPRK's deputy negotiator, and his US counterpart Joseph DeTrani had a one-hour bilateral meeting in the morning. They discussed such issues as the DPRK's peaceful use of nuclear energy and the scope of denuclearization on the Korean Peninsula, said Song Min-soon, ROK chief negotiator.

But the two sides"failed to narrow their differences," said Song.

On the basis of the DPRK-US consultations, a series of one-on-one contacts were held between the ROK and the US, the DPRK and the ROK, China and the US, and China and Japan.

As for the proposed common document, Song said, "We want a clear not an ambiguous result of the talks...But given the fact that no concessions have been made(by the six parties) clearly, ambiguity is inevitable."

"I'm not saying that ambiguity is indispensable at the current stage as all the parties concerned need to continue consultations," he added.

Observers noted there are major differences between the DPRK and the United States in issues including whether the DPRK should have the right to use nuclear energy for peaceful purposes.

DPRK chief negotiator Kim Kye-gwan insisted his country should enjoy the right to peaceful use of nuclear energy.

Speaking to reporters outside the DPRK embassy following Thursday night's meeting of delegation heads, Kim expressed dissatisfaction with the United States' opposition to the DPRK's peaceful use of nuclear energy.

"The DPRK is neither a defeated nation in a war nor a nation having committed any crimes, so why should we not be allowed to use nuclear energy peacefully?" said Kim, also vice foreign minister of the DPRK. Enditem