A Hiroshima man angered by a conductor's request to stop using his cellular phone retaliated by jumping off the train and blocking the tracks, police said Friday.

Masato Hirono, 51, was arrested Thursday on charges of attempted extortion and forcibly obstructing business.He was talking on his cell phone while riding a commuter train March 26 when the conductor made a regular reminder over the intercom asking passengers not to annoy fellow riders by using mobile phones, police said.

Hirono flew into a rage, got off at the next station and demanded that the station master pay him, police said. When the station master refused, Hirono allegedly jumped onto the tracks and forced an oncoming train to slam on its emergency brakes.