North Korea showed Kim Jong-un at a "nuclear submarine" site; analysts: it aims to justify its nuclear push and cast Seoul's sub debate as a threat.

Kim Jong Un made the comments while inspecting a North Korean nuclear submarine facility on Wednesday.

The submarine project is part of the ruling party's effort to modernize North Korea's navy, KCNA said.

North Korea showed Kim Jong-un at a "nuclear submarine" site; analysts: it aims to justify its nuclear push and cast Seoul's sub debate as a threat.

North Korea on Thursday showcased what it described as the construction site of an 8,700-ton "nuclear-powered strategic guided missile submarine."