In first, president tours fortified frontier, comes close to North Korean troops, and has brick dedicated to his late wife

Pyongyang says it may stop abiding by moratorium it agreed on with America to protest US-South Korea military drills

Family of Otto Warmbier claims right to cargo vessel after Pyongyang refuses to respond to $501 million wrongful death judgement

Experts downplay effectiveness of charm offensive and say even if Trump might want to engage Iran the same way he has North Korea, Tehran is not interested

US president invites North Korean leader to visit him in Washington, but tells media that 'speed is not the object' in reaching a denuclearization agreement

First time a sitting US president has set foot in the country, marking a return to face-to-face contact between the leaders since talks broke down in February

Highly unusual meeting at heavily fortified frontier being worked on, president says from Seoul, in latest display of unconventional diplomacy with dictator

No details given about contents of exchange, months after nuclear talks break down; Pyongyang says leader to 'seriously contemplate' letter

Kim Yong Chol, who was reportedly sentenced to hard labor over failed nuclear summit with US, filmed enjoying a concert near leader Kim Jong Un

Kim Hyok Chol said killed by firing squad for 'betraying the supreme leader' after he was 'won over to the US'