North Korean leader Kim Jong-un was shown inspecting a uranium enrichment facility. State media released images of centrifuges for bomb fuel production. Kim called for more centrifuges to boost nuclear arsenal,

North Korean leader Kim Jong Un said his isolated state would increase its arsenal of nuclear weapons by "geometrical progression" due to threats from the United States and its allies, state media reported Tuesday.

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.