It turned out that the threat of the attack in Tsaritsyno is related to a video of a boy on TikTok - he was arrested by the FSB The FSB detained a Russian minor while checking information about the preparation of a terrorist attack in Moscow received from the American side. According to the intelligence service, the source of reports of a threat to the Tsaritsyno Museum Reserve turned out to be a teenager who posted a video on TikTok.