North Korea​ offered a rare glimpse into a facility to produce weapons-grade uranium as state media reported leader Kim Jong Un called for "exponentially" more nuclear weapons.

New pictures of North Korean leader Kim Jong Un touring what state media said is a uranium enrichment facility have given an extremely rare glimpse inside the isolated nation’s closely guarded nuclear weapons program.

North Korea provided a rare glimpse Friday of a secretive uranium-enrichment facility where it produces material for its nuclear weapons program when it released several images of its leader Kim Jong Un touring the site.