The US Embassy in Moscow has issued an emergency warning of a "credible threat" with mass casualties at the Tsaritsyno Museum Reserve in Moscow, according to the diplomatic mission, the threat is relevant for today, October 31. The American embassy said it was coordinating the response with Russian authorities. US citizens were advised not to visit Tsaritsyn, stay away from the area and avoid crowded places.

The US Embassy in Moscow has issued an emergency warning of a "credible threat" with mass casualties at the Tsaritsyno Museum Reserve in Moscow, according to the diplomatic mission, the threat is relevant for today, October 31. The American embassy said it was coordinating the response with Russian authorities. US citizens were advised not to visit Tsaritsyn, stay away from the area and avoid crowded places.