"Information about preparations for a terrorist attack in Moscow has been received from the American side through partner channels. Appropriate measures are being taken," the FSB said in a statement.
The local ceasefire in Oleshky was reached thanks to mediation efforts by US First Lady Melania Trump with the pope's involvement.
The unrest has handed a political boost to far-right leader Marine Le Pen, who leads the polls ahead of April's presidential election, while potential centrist successors to Macron remain divided.
"This is where we see the 'Louvre effect'," said Marc Balcells, a Barcelona-based researcher. "If the Louvre was so easy to rob, just imagine a tiny museum in a rural area."
US Secretary of State Marco Rubio and Brazilian Foreign Minister Mauro Vieira agreed to meet again before the G-20 summit in December in Miami, Bloomberg reported.
More than 150 Afghans face deportation under Trump, including families of people who assisted US forces before the Taliban takeover, according to reports.
Trump's oil and gas holdings rose 43% amid the Iran war, a Democratic congressional report found, raising conflict of interest concerns as US families spent an estimated $856 more on gasoline.
Georgia's Senate election pits a Jewish Democrat who voted against certain Israel arms sales against a Republican facing scrutiny over family and former staff members' far-right views.
A police commander warned that those who help organize the demonstration, give instructions, or provide logistical support could be arrested and charged with offenses under the Terrorism Act.
Ukrainian President Volodymyr Zelensky said earlier this week that Ukraine had been waiting for almost a month for the US to sign off on critical missile supplies.
Andreas Malm, an academic at Sweden's Lund University, has been a vocal critic of Israel and has expressed strong support for the Palestinian movement.
