Nine people were stabbed or punched on an Odakyu Electric Railway commuter train Friday evening in Tokyo, with police saying they detained a man at a convenience store after he fled the scene. Of the nine, a woman in her 20s was seriously injured with multiple stab wounds in her back and chest, while the remaining eight, all men, sustained minor injuries, investigative sources said. After the attack, which occurred at around 8:30 p.m. in the front carriage of a train in Tokyo's Setagaya Ward, the man in his 30s fled and was later detained by police at the convenience store in neighboring Suginami Ward, the investigative sources said.