FUKUOKA - A middle school teacher in Kasuya, Fukuoka Prefecture, fired a revolver he had confiscated from a student in the teachers' room, according to police.
The police quoted the teacher as saying he did not believe the gun was real. Nobody was injured in the incident.
According to the police and the school, the 25-year-old teacher and others found the student had brought an action figure into the classroom last Wednesday. The teacher inspected the student's belongings and found the gun and what appeared to be live bullets.
The teacher then put the items in the teachers' room.
At about 5 p.m. Saturday, the teacher put a bullet into the gun and pulled the trigger. The bullet hit a wooden chair in the teachers' room. Only the teacher and one of his colleagues were in the room at the time.
The teacher reported the incident to the vice principal that day, but the vice principal did not inform the principal until Monday. The principal then reported it to the police.
The police said the gun was a revolver and belonged to the boy's father, who has been arrested on suspicion of violating the Firearms and Swords Control Law. They are investigating how he obtained the gun.
The student reportedly told police he brought the gun from his home and thought it was a fake.
"As the teachers believed the weapon was a sophisticated toy gun, even after it was fired, they didn't report the incident to me over the weekend," the principal told reporters. "I'm relieved no one was injured, but we were at fault in our handling of the incident."
According to the police, the father apparently kept the revolver and some bullets in a shed near his home in Kasuya in mid-September. The student is believed to have taken them into the house at around that time.