Source : BRICS NEWS (AI-generated illustration)
MOSCOW, October 31 – The United States Embassy in Moscow has warned of a “credible threat of a mass casualty event” at the Tsaritsyno Museum-Reserve in the Russian capital, prompting Russian authorities to close the historic park and evacuate visitors on Saturday evening.
The news aggregator BRICS News reported on X late on October 31, 2026, Malaysia time, that the US Embassy had issued a security alert warning of a potential mass casualty event in Moscow that day. The alert, published by the US Mission in Russia, named the Tsaritsyno Museum Reserve at Dolskaya Ulitsa 1 as the location of the threat, according to the independent outlet Meduza.
What the alert said
“The U.S. Embassy in Moscow is aware of a credible threat of a mass casualty event TODAY October 31, at the Tsaritsyno Museum Reserve in Moscow,” the embassy said, adding that “the U.S. government is coordinating with appropriate Russian authorities on a response”, Meduza and Fox News reported.
The embassy advised US citizens to avoid the museum and the surrounding area on October 31, stay alert and avoid crowds. It also urged them to be aware of their surroundings, review their personal security plans, keep their mobile phones charged, carry proper identification and monitor local media for further information.
FSB confirms warning
Russia’s Federal Security Service (FSB) later confirmed that it had received the American warning. “Information about the preparation of a terrorist attack in Moscow has been received from the American side through partner channels. Appropriate work is being carried out,” the FSB said, according to the Russian news site NEWS.ru. The Kyiv Independent, citing the TASS news agency, also reported that the FSB confirmed receiving a US warning about a planned terrorist attack.
The RIA Novosti news agency, citing law enforcement sources, reported that the museum-reserve had been temporarily closed and that there was no access to the park. TASS quoted emergency services as saying Tsaritsyno had been closed “in connection with operational activities”.
NEWS.ru reported that an organ concert in the Atrium of the Bread House on the Tsaritsyno grounds was interrupted about 10 minutes before the end, when an evacuation was announced over the loudspeakers and the nearly full hall was cleared. Access roads to the park in southern Moscow were blocked and more than 50 security personnel arrived at the scene, the outlet said. No incidents, casualties or injuries at Tsaritsyno had been reported.
A popular landmark
Tsaritsyno is a palace and park complex in southern Moscow founded in 1775 as a summer residence for Empress Catherine II. The museum alone attracted more than two million visitors in 2022, according to Moscow’s deputy mayor Natalya Sergunina, Fox News reported, while the surrounding grounds are widely used by local residents for exercise and walking.
Earlier in the day, before the closure, a museum representative had told the Telegram channel Mash that staff had no information about any threat, Meduza reported. The outlet noted that the US Embassy issued a similar warning in early March 2024, shortly before the terrorist attack at Crocus City Hall outside Moscow.
Fox News said the alert came as tensions in the war between Russia and Ukraine continue. LNA will continue to follow developments.
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