In Sterlitamak student has committed a knife attack on a classmate and the teacher, and then started a fire, informs Investigatory Committee. the incident happened at the school facility number 1. The teenager entered the office of Informatics, caused bodily injury to a student in hand, attacked the teacher. Then a student poured a flammable substance and lit class, the alarm went off. Then he inflicted a stab wound. One of the students, frightened by the alarm, I tried to jump out the window. From a fire no one was hurt. The student was tied and then put in the hospital. They were 17-year-old student remedial class. damaged four people