- North Korea’s mystery train: Drab on the outside, ‘opulent’ on the insideNBCNews.com
- Is Kim Jong Un in Beijing? Arrival of mystery train causes a stir.Washington Post
- Why would Kim Jong Un make a secret trip to China?CNN
- What’s behind Kim Jong Un’s Visit to Beijing?Newsday
- Arrival of North Korean Train in Beijing Triggers SpeculationWall Street Journal