The US warned of the possibility of a terrorist attack in one of the most visited parks in Moscow A terrorist attack may occur in Tsaritsyno Park in Moscow, which is considered the most visited museum reserve in the capital, on Saturday, October 31, the US Embassy in Russia said. According to the "security alert", the diplomatic mission was made aware of a "credible threat of an event that could lead to mass casualties today, October 31, in the territory of the Tsaritsino Museum Reserve". The embassy said that possible response measures are being coordinated "with the relevant authorities of the Russian Federation". US citizens were advised on Saturday not to visit Tsaritsino, not to approach the area near the park, avoid crowded places and "stay alert". More details.