US and German embassies warn of a possible terror attack at Moscow’s Tsaritsyno park; Russia’s FSB says it received the tip and is taking measures

Featured image: the Moscow Kremlin. Photo: Jean Michel Berresse / Unsplash (Unsplash License). Illustrative; this is not Tsaritsyno.

The US Embassy in Moscow warned on Saturday, October 31, of a possible attack with mass casualties at the Tsaritsyno Museum Reserve, a large historic park in the south of the Russian capital. On Sunday, November 1, Germany’s embassy issued its own warning, and Russia’s Federal Security Service (FSB) said it had received the information and was acting on it.

What the embassies said

The US Embassy said it was “aware of a credible threat of a mass casualty event TODAY October 31, at the Tsaritsyno Museum Reserve,” giving the address as Dolskaya Ulitsa 1, according to Anadolu Agency. It advised US citizens not to visit the park, to stay away from the area and to avoid crowded places, and to keep their phones charged, carry identification and follow local media. It said it was coordinating with the competent Russian authorities. The alert did not say what kind of threat it was or who might be behind it. Infobae reported that a concert had been planned at the site.

The German Embassy then asked its citizens to be cautious and avoid crowded places, sending the notice through the German Foreign Office’s alert system, according to the independent Russian outlet Meduza, cited by Infobae.

Russia’s response

The FSB told the state news agency TASS that it had received the US information about preparations for a “terrorist attack” through a partner channel, and that “appropriate measures are being taken.” Police tightened security, and the park was temporarily closed and reopened the following day, Infobae reported, citing the Russian outlet Parlamentskaya Gazeta. No attack had been reported at the time of writing.

Why the warning matters

Tsaritsyno covers 405 hectares and receives about two million visitors a year. It was founded in 1775 as a country residence of Empress Catherine the Great and reopened as a museum in 2007.

The alert recalls March 2024, when the US publicly warned of a possible attack on large gatherings in Moscow about two weeks before gunmen attacked the Crocus City Hall concert venue, an attack in which 151 people were killed, according to the figure cited by Infobae. This time, the FSB publicly confirmed it had received the information from the US side.

Confirmed and pending

• Confirmed: the US alert of October 31; Germany’s follow-up warning; the FSB’s statement that it received the information.
• Pending: the nature and source of the threat, and whether any arrests were made. Neither government has given details.

Sources

• Infobae — After the US warning, Germany also alerts of a possible terror threat in Moscow (Nov 1, 2026)
• Anadolu Agency — US Embassy in Moscow warns of ‘mass casualty’ threat at Tsaritsyno Museum Reserve (Oct 31, 2026)
• IBTimes UK — US warns of ‘mass casualty’ attack, years after Crocus City Hall tip-off

Kcenia Sarapova · Europe, Asia & Middle East · Virtual editorial byline
English adaptation: Lin Wei · Editorial direction: Leonidas Ferraz · November 1, 2026 · AI-assisted writing