The operator has suspended all coupled Shinkansen operations since the link between Hayabusa and Komachi trains on the Tohoku Shinkansen line became decoupled while on the move last Thursday.

The driver discovered that the coupling between the seven Komachi cars and the 10 Hayabusa cars had separated and the distance between the two Shinkansen was about eight meters. On the evening of ...

All passengers were instructed to leave the train, and the Hayabusa No. 52 operation was suspended. Some Tohoku Shinkansen trains bound for Tokyo were delayed between Morioka and the capital.

The railway operator also provided some details of the accidental decoupling on the Tohoku Shinkansen line last Thursday. The trains -- known as Hayabusa and Komachi -- were traveling in Tokyo ...