North Korea and China resumed an international passenger train service linking their capitals Thursday for the first time in six years, with a train spotted crossing the border bridge between the two countries. A nine-car train traveling from Pyongyang to Beijing was seen by Yonhap News Agency passing over the Amnok River bridge, also known as the Yalu River bridge, connecting North Korea's Sinuiju and China's Dandong, at around 4:23 p.m. Some train cars had closed curtains, while passengers