It is reported by the Center for Public Relations (CSP) of the FSB.
The detention of teenagers who planned the attack became known on Wednesday, February 26.
A criminal case has been opened under the article “preparation for the commission by a group of persons of a preliminary conspiracy to kill two or more persons”.
Two teenagers admitted to preparing for the massacre. According to one of them, it was planned to kill “about 40 people” from revenge.
According to the FSB, they were members of online communities promoting the ideology of mass killings and suicide.