Kim Jong Un reveals 'nuclear attack submarine'

North Korean leader Kim Jong Un has held a ceremony to reveal a new submarine, which Pyongyang claims can carry nuclear weapons.
A report in state media said the submarine strengthened the country's nuclear deterrent by "leaps and bounds".

A nuclear-attack submarine has long been on the list of weapons North Korea wants to build.

In photographs released by state media, Mr Kim is standing in a shipyard, surrounded by naval officers, and overshadowed by an enormous black submarine, which the report claimed is capable of launching nuclear weapons.