A 14-year-old boy was arrested early Monday on suspicion of stabbing a bus driver in the western suburb of Hachioji the previous afternoon, police said.
The third-year junior high school student has admitted stabbing the 37-year-old driver in the chest with a fruit knife, slightly injuring him, as he tried to prevent the boy from hijacking the vehicle around 3:10 p.m. Sunday, the police said.
"My friends teased me," the student was quoted as telling the police. "I was planning to lock myself in the bus to get back at them."
The police said the boy, whose name has been withheld because he is a minor, drew the knife after the bus stopped in front of JR Nishi-Hachioji Station.
He then ordered the driver to close the door and the passengers to move back. The driver was injured as he scuffled with the boy, the police said.
The boy was identified from a bag he left in the vehicle after fleeing the scene. He was arrested when he returned home around 7:30 p.m.
He reportedly told the police that he bought the knife at a convenience store, but had thrown it away after the attack.