MOSCOW, Sept. 5 (Xinhua) -- A 15-year-old Russian student attacked a teacher at a school in Moscow region Tuesday, leading to four injuries, police and investigators said.
The student attacked the teacher with an axe on the head, fired a pneumatic gun and scattered smoke bombs in a classroom, said the Moscow regional office of the Russian Investigative Committee.
The teacher suffered an open head injury. Three students jumped out of the window, one of them suffering a fracture and the others bruises.
The four injured have been hospitalized, with none in critical condition.
The juvenile perpetrator was detained and interrogated in the presence of his parents, police said.