MOSCOW, Dec. 30 (Xinhua) -- The Russian Federal Security Service (FSB) said Monday it had detained two Russian nationals for plotting terrorist attacks during the New Year holidays in Russia's second largest city, St. Petersburg.
The detention took place on Friday following information received from U.S. partners, an FSB statement said.
"Evidence confirming their preparations for terrorist attacks was seized from the detainees. They have confessed," it said.
On Sunday, Russian President Vladimir Putin called U.S. President Donald Trump to thank him "for the information transmitted through the channels of U.S. special services that has helped thwart terrorist acts in Russia," the Kremlin said in a statement.
The two presidents agreed to continue bilateral cooperation in combating terrorism, it said.