VIENNA - North Korea has made further progress in the construction of a new atomic reactor, the UN nuclear chief reported on Thursday, a facility that may extend the country's capacity to produce material for nuclear bombs.

Pyongyang "has continued construction of the light water reactor and largely completed work on the exterior of the main buildings," said Yukiya Amano, director general of the International Atomic Energy Agency (IAEA).

But, he told the IAEA's 35-nation governing board that the UN agency "remains unable to determine the reactor's design features or the likely date for its commissioning."

Please LIKE our Facebook page - it makes us stronger