The US Embassy issued an emergency warning about a possible attack today in Tsaritsyno Park in Moscow. The US is aware of a "credible threat" with mass casualties at the Tsaritsyno Museum Reserve in Moscow. US citizens have been urged not to visit the reserve under any circumstances.

The US Embassy issued an emergency warning about a possible attack today in Tsaritsyno Park in Moscow. The US is aware of a "credible threat" with mass casualties at the Tsaritsyno Museum Reserve in Moscow. US citizens have been urged not to visit the reserve under any circumstances.

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