Russia’s President, Vladimir Putin, has thanked his United States counterpart, Donald Trump, for intelligence that helped foil “acts of terrorism” on Russian soil.
Presidents Putin and Trump spoke on the phone on Sunday, the Kremlin disclosed in a statement.
The Kremlin said the information came via intelligence services, but it provided no further details.
Russian media is reporting the discovery of a plot to attack St Petersburg over the new year period.
Tass news agency says two Russian nationals have been arrested and plans to attack a mass gathering were seized, according to a spokesperson from the FSB, the Russian intelligence agency.
Presidents Putin and Trump have spoken on the phone and in-person various times since the latter took office.
Records from the conversations show they have often talked about Syria, as well as nuclear agreements, North Korea and trade.
In December 2017, President Putin thanked President Trump for another warning from US intelligence agencies, which again apparently prevented a terrorist plot in St Petersburg, according to a White House account.
During that call, the Kremlin said the Russian President had promised to reciprocate with information about terrorist threats to the United States.
Despite the complication between the US and Russia following the latter’s annexation of the Crimea peninsula from Ukraine in 2014, Presidents Trump and Putin have appeared to be on good terms personally, and they have vowed to co-operate on terrorism.
President Trump has indicated he is considering attending the Victory Day celebrations in Moscow next May, after an invitation from the Russian leader.