Last week's accidental shelling of a South Korean village occurred less than 20 miles from the border of the nuclear-armed North.
A train station in China that is so far underground ... In North Korea, the Pyongyang Metro is one of the deepest metro systems in the world, sitting at 100 metres (328 feet) underground.
North Korea carried out a test-launch of its strategic cruise missiles in the Yellow Sea this week, Pyongyang's state media ...
TASS/. North Korea’s Supreme Leader Kim Jong Un left Pyongyang on a special train in the late afternoon on September 10 for a visit to Russia, the Voice of Korea radio station reported.