Railway operator probes into uncoupled bullet trains in Japan
A Japanese bullet train operator is investigating what caused two linked Shinkansen trains to uncouple while moving at high speed, public broadcaster NHK reported on Friday. A coupler on the Tokyo-bound two-train service on the Tohoku Shinkansen line became unhinged while it was running between Furukawa and Sendai stations in the northeastern prefecture of Miyagi on Thursday morning,