The FSB is checking data on the preparation of a terrorist attack in Moscow: the signal came from the American side on partner channels, information was received from the United States about a possible preparation for a terrorist attack in Moscow. The FSB is conducting an investigation and the necessary operational measures, the department reported. Earlier, the US Embassy issued an emergency warning about the "credible threat" of mass casualties in the Tsaritsyno Museum Reserve and urged American citizens not to visit this territory under any circumstances. AI generated illustration. Ostashko! Important at TG We're Max - Read news without interruptions and VPN.