This was reported by the Kazinform agency.

It is noted that as a result, two tenth-graders and one ninth-grader were injured.

Two victims were hospitalized, one was treated on the spot.

The attacker was detained, according to preliminary data, he is on a psychiatric register.

Earlier it became known that in Khimki a fifth-grader with stab wounds was hospitalized from a school. 

The governor of the Moscow region Andrey Vorobyov, as reported by the 360 ​​TV channel, visited the girl in the hospital.

According to him, the situation was a shock for everyone, but thanks to the doctors, the schoolgirl regained consciousness.

It is noted that the fifth grader lost a lot of blood.