A 31-year-old train passenger in Yamaguchi Prefecture has been arrested after pulling a box-cutter knife on the 24-year-old woman sitting next to him and threatening to kill her.

Police said a passenger aboard a JR train called the Hiroshima branch of West Japan Railway Co. at about 4 p.m. on Thursday, reporting the standoff. The train was at Honyura Station on the JR Sanyo Honsen Line, in the city of Yamaguchi, at the time of the incident.

The driver and some of the passengers overpowered the man and held him down. He was arrested for allegedly intimidating the female passenger.

There were 80 passengers aboard the train, police said, but no injuries among them resulted from the incident. The alleged perpetrator sustained light injuries to his head from being pinned down, the investigators said.

The man's motive remains unclear. The unidentified resident of Yamaguchi was unacquainted with the woman, police investigators said.

The train had departed Iwakuni and was bound for Shimonoseki, both in Yamaguchi Prefecture. The incident delayed two trains by about 30 minutes and affected 180 passengers, JR West said.