On Aug. 17, 1949, a train came off the tracks near Matsukawa Station in Fukushima Prefecture as a result of apparent sabotage. Several bolts connecting the tracks were loosened, and joint bars and spikes were pulled away.

The derailment left three crew members dead and led to the indictment of 20 labor union activists in the old Japanese National Railways and a local Toshiba Corp. factory.

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