The United States warned of a threat to the Tsaritsyno museum reserve in Moscow. The FSB confirmed that it had received a warning from the United States about a terrorist attack. The US Embassy in Russia posted a warning on its website about a threat to the Tsaritsyno Museum Reserve in Moscow on this day. "The US Embassy in Moscow has become aware of a credible threat of an incident that could result in mass casualties today, October 31, on the grounds of the Tsaritsyno Museum Reserve in Moscow at 1 Dolskaya Street, Moscow, Russia, 115569. The US government is coordinating the Russian embassy's response with the appropriate embassy notice. The American diplomatic mission urged people to avoid visiting the Tsaritsyno Museum Reserve on October 31. "Do not approach the specified area, stay alert and avoid crowded places," the message said. The FSB confirmed that it had received a warning from the US about a possible terrorist attack. "In partner channels, information was received from the American side about the preparation of a terrorist attack in Moscow, and appropriate work is being carried out," TASS quoted the department. The museum-reserve told the Mash Telegram channel that they have no information about the threat and that Tsaritsino continues to operate as usual. Later it was learned that police arrived at the scene, and now the entrance to the museum is closed, writes the "Communication Caution" channel. In 2024, the "Washington Post" wrote that the United States notified the Russian intelligence services in advance of a threat of a terrorist attack at the concert hall of the Crocus municipality near Moscow.