The US warned of the threat of a "mass casualty event" on October 31 in Moscow The website of the US Embassy in the Russian Federation published a warning "about a credible threat of an event that could lead to mass casualties today, October 31, on the grounds of the Tsaritsyno Museum Reserve in Moscow." The message recommends that US citizens in Russia avoid visiting the museum and the surrounding areas, monitor the situation and carry a charged phone and documents with them. The message also stated that "the US government is coordinating its response with the relevant authorities of the Russian Federation." Several concerts and musical events are planned today at the museum.

The US warned of the threat of a "mass casualty event" on October 31 in Moscow The website of the US Embassy in the Russian Federation published a warning "about a credible threat of an event that could lead to mass casualties today, October 31, on the grounds of the Tsaritsyno Museum Reserve in Moscow." The message recommends that US citizens in Russia avoid visiting the museum and the surrounding areas, monitor the situation and carry a charged phone and documents with them. The message also stated that "the US government is coordinating its response with the relevant authorities of the Russian Federation." Several concerts and musical events are planned today at the museum.