The US Embassy warned of a threat of a terrorist attack with mass casualties in Tsaritsyno in Moscow The US Embassy in Moscow stated that they had received reliable information about a threat in an incident with a large number of victims in the territory of the Tsaritsyno museum reserve on October 31. Americans were advised not to visit the area. After the warning, the park was closed "for technical reasons," Russian media reported. The police arrived at the scene, the entrance to the area is closed. The FSB of the Russian Federation confirmed that they received information from the American side about the preparation of a terrorist attack in Moscow. They said they were doing the relevant work. In March 2024, the US Embassy warned of the threat of attacks on places of mass gathering of people in Moscow, including concerts. 15 days later, an attack occurred at the "Karchum Municipality Building", where about 150 people died. Radio Liberty.