New: The US Embassy in Moscow says it is aware of a credible threat of a mass casualty incident targeting the Tsaritsyno Museum Reserve in Moscow on October 31st. The embassy said that US authorities are coordinating with Russian officials and advised people to avoid the area, remain vigilant and stay away from crowds.

New: The US Embassy in Moscow says it is aware of a credible threat of a mass casualty incident targeting the Tsaritsyno Museum Reserve in Moscow on October 31st. The embassy said that US authorities are coordinating with Russian officials and advised people to avoid the area, remain vigilant and stay away from crowds.