North Korea announces development of a nuclear submarine

North Korea's nuclear-powered submarine, believed to be built with Russian technology, could pose major security concerns to neighbour South Korea and its ally, the US, due to its ...
North Korea has unveiled a nuclear-powered submarine under construction. SEOUL, South Korea -- North Korea unveiled for the first time a nuclear-powered submarine under construction, ...
North Korea has unveiled a new weapon of war, specifically a nuclear-powered submarine that experts have called "absolutely ...