U.S. Embassy Warns of Potential ‘Mass Casualty Event’ in Moscow

The U.S. Embassy in Moscow issued an alert Saturday, warning of a credible threat of a mass-casualty event at the Tsaritsyno Museum Reserve. The warning was for October 31 and urged people to avoid the site and crowds. The embassy said it was coordinating with Russian authorities. Russia’s Federal Security Service confirmed receiving information from U.S. partners about a possible attack and said it was taking measures. The museum reserve was evacuated and closed; no attack or injuries were reported.