The regional children's rights commissioner Evgeniya Mayorova gave a comment after the incident at the Chelyabinsk school.
As a result of the attack by the schoolboy, four people were preliminarily injured.
Mayorova also told RIA Novosti that the victims are receiving medical assistance.
The ombudsman added that many questions remain regarding security, including technical equipment and psychological services.
Mayorova confirmed that all four victims are receiving medical assistance.
Attack at school
A schoolboy brought a hammer into school and attacked students and teachers.
According to sources, he managed to hit schoolchildren and a teacher.
The victims were hospitalized. Doctors are providing the patients with the necessary assistance.
The school has a security fence and a guard on duty.
Investigators will have to clarify all the circumstances of the case.
Author: Elena Gutyro
