Russia’s Federal Security Service received an alert from U.S. partners about Moscow attack preparations
Russia’s Federal Security Service told Tass it received information from U.S. partners about preparations for a “terrorist attack” in Moscow and was taking appropriate measures. The U.S. Embassy warned of a credible mass-casualty threat at Tsaritsyno Museum Reserve on October 31. The embassy said the U.S. government was coordinating with Russian authorities; the warning publicly identified no suspects or method.
More context
On Saturday, the U.S. diplomatic mission in Moscow flagged a credible risk of mass casualties at the Tsaritsyno Museum Reserve, with the threat set for October 31. The embassy’s alert gave the location as Dolskaya Ulitsa 1, Moscow. It urged people to avoid the reserve and crowds, remain alert, and keep their phones charged in case of emergency. The embassy said the U.S. government was coordinating with appropriate Russian authorities on a response. Russia’s Federal Security Service told state news agency Tass that U.S. partners had alerted it to preparations for an attack in Moscow described as “terrorist,” and said it was taking appropriate measures. The warning did not publicly identify suspected planners or detail a possible method.
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Reporting
- Anadolu Agency — US Embassy in Moscow warns of ‘mass casualty’ threat at Tsaritsyno Museum Reserve
- Newsweek — US and Canada Issue Mass Casualty Warning—What We Know About Moscow Threat - Newsweek
- Mathrubhumi — US warns of ‘mass-casualty event’ at Moscow landmark; Russian security agencies launch measures
- usembassy.gov — Security Alert: Threat to Tsaritysyno Museum Reserve in Moscow (October 31, 2026) - U.S. Embassy & Consulates in Russia
- local21news.com — U.S. Embassy warns of 'credible threat of a mass-casualty event' at Moscow museum
- businessupturn.com — Russia's FSB receives US information about planned terrorist attack in Moscow, RIA reports · Business Upturn
- republicworld.com — US Warns Russia Of Terror Plot In Moscow, Issues Mass Casualty Alert At Tsaritsyno Museum Reserve | Republic World
- sundayguardianlive.com — Russia-Ukraine War Breaking News: US Embassy in Moscow Says Warned Russia of ‘Credible Threat’ of Attack on Moscow
Verifier’s note
The U.S. Embassy’s alert confirms the credible October 31 threat at Tsaritsyno, and Anadolu Agency and Republic World also report Russia’s account that it received information from the United States. Newsweek, Mathrubhumi, Local 21 News, Business Upturn, and Sunday Guardian cover the same alert; the results are contemporaneous and do not contradict the claim.