The US Embassy in Moscow issued a security alert warning of a "credible threat of a mass casualty event" today, October 31, at the Tsaritsyno Museum Reserve in Moscow. US citizens are urged to avoid the area, remain vigilant, avoid crowds and monitor local media. The embassy said the US government is coordinating with the appropriate Russian authorities on a response. No further details were given about the nature of the threat.

The US Embassy in Moscow issued a security alert warning of a "credible threat of a mass casualty event" today, October 31, at the Tsaritsyno Museum Reserve in Moscow. US citizens are urged to avoid the area, remain vigilant, avoid crowds and monitor local media. The embassy said the US government is coordinating with the appropriate Russian authorities on a response. No further details were given about the nature of the threat.