Russia's FSB Says Minor Detained Over Moscow Park Attack Threat After U.S. Tip-Off

Nov. 1, 2026 A woman walks in the Tsaritsyno Museum Reserve in Moscow, Nov. 1. REUTERS / Ramil Sitdikov Russia's FSB security service said on Sunday that an underage Russian national was detained over a threat to carry out a terrorist attack in Moscow's Tsaritsyno Park, after Russia received a tip-off from the United States, Interfax reported. "We are grateful to the American side for providing the information," the security service was quoted as saying in a statement. The U.S. Embassy in Moscow on Saturday issued an urgent security alert warning of a credible threat of a mass casualty event at the museum reserve that day. The embassy said the U.S. government was coordinating with Russian authorities on a response and urged people to avoid the area and take precautions to ensure their safety. The FSB later confirmed that it had received information from the United States about plans for a terrorist attack in Moscow and was taking action. Tsaritsyno was evacuated Saturday during a concert by musician Lilia Pechenkina. “Just as I was playing the last piece in the program, an evacuation announcement came over the loudspeaker,” Pechenkina told the news outlet Ostorozhno, Novosti. Security staff told a journalist from the outlet that the museum reserve had been closed for “technical reasons.” Around 50 law enforcement officers were dispatched to the area, with police vehicles patrolling the perimeter, according to the Baza Telegram channel, which is reported to have ties to Russia’s security services. In 2024, the U.S. warned of an impending terrorist threat in Moscow ahead of the March 22 attack on Crocus City Hall, which killed 145 people and wounded hundreds more. Russian foreign intelligence chief Sergei Naryshkin later said the U.S. information had been “too general” to identify the attackers. Reuters contributed reporting. Read more about: FSB , Terrorism , United States Sign up for our free weekly newsletter Our weekly newsletter contains a hand-picked selection of news, features, analysis and more from The Moscow Times. You will receive it in your mailbox every Friday. Never miss the latest news from Russia. Preview Subscribers agree to the Privacy Policy We sent a confirmation to your email. Please confirm your subscription. A Message from The Moscow Times: Dear readers, We are facing unprecedented challenges. Russia's Prosecutor General's Office has designated The Moscow Times as an "undesirable" organization, criminalizing our work and putting our staff at risk of prosecution. This follows our earlier unjust labeling as a "foreign agent." These actions are direct attempts to silence independent journalism in Russia. The authorities claim our work "discredits the decisions of the Russian leadership." We see things differently: we strive to provide accurate, unbiased reporting on Russia. We, the journalists of The Moscow Times, refuse to be silenced. But to continue our work, we need your help. Your support, no matter how small, makes a world of difference. If you can, please support us monthly starting from just $2. It's quick to set up, and every contribution makes a significant impact. By supporting The Moscow Times, you're defending open, independent journalism in the face of repression. Thank you for standing with us. Once Monthly Annual Continue Not ready to support today? Remind me later. × Remind me next month Remind me Thank you! Your reminder is set. We will send you one reminder email a month from now. For details on the personal data we collect and how it is used, please see our Privacy Policy. Read more U.S. Embassy Warns of Potential 'Mass Casualty Event' in Moscow Russia's FSB said it had received the report and was "taking appropriate action." 2 Min read 2 Kazakhs Killed in Russian Anti-Terror Operation Moscow claims that it prevented an attack against a synagogue in the Russian capital. 1 Min read Russia Says 6 IS Fighters Killed in Caucasus Republic Russian authorities frequently announce the thwarting of planned attacks by suspected Islamist groups. 1 Min read Russian Security Services Troll U.S. Embassy With July 4 Billboard “Welcome to our peaceful country,” read the billboard in the colors of the Russian flag, set against the backdrop of the Kremlin and St. Basil’s... 1 Min read