What happened at Russia's Tsaritsyno Museum Reserve? US Embassy issues alert over mass casualty threat

The U.S. Embassy in Moscow has warned of a credible threat targeting the Tsaritsyno Museum Reserve on October 31, 2026. Visitors are advised to avoid the area and remain alert to their surroundings. The embassy provided safety recommendations for individuals in the vicinity to ensure their security. Tsaritsyno, a popular cultural site, has historical significance as it served as Empress Catherine II's intended summer residence.