Russian President Vladimir Putin phoned President Donald Trump to thank him for a tip from the CIA that thwarted a terrorist attack being planned in St Petersburg, the Kremlin said.
The call was confirmed by White House spokeswoman Sarah Sanders in a tweet.
Putin told Trump that the information provided by the CIA allowed Russian law enforcement agencies to track down and detain a group of suspects that was planning to bomb the Kazan Cathedral and other crowded parts of Russia's second-largest city.
Putin asked Trump to pass along his gratitude to the CIA and the American intelligence agents who received the intelligence, the Kremlin said. It said that Putin also told Trump that "if Russian special services obtain any information on terrorist threats against the United States and its citizens, they will definitely and immediately pass it to American counterparts through partner channels".