The Viktor Leonov was sailing 20 nautical miles from the US navy's submarine base.
The two leaders are set to have their first face-to-face meeting in the White House on 14 March.
Israeli PM Benjamin Netanyahu accuses Tehran of using Syrian civil war to gain foothold on 1967 ceasfire line.
Northern League leader Matteo Salvini flew to Moscow to meet Russian politicians.
Johnson's Moscow visit will follow UK's 'engage but beware' policy towards Russia
Ultra-nationalist Alexander Dugin wants to help make the Russia-US axis great again.
Here are the US government probes investigating Russia's influence on the US election.
Boris Nemtsov was shot dead near the Kremlin in 2015 with five Chechens accused of his murder
Anti-fascist pranksters tell IBTimes UK that even young Republicans were supportive of their protest.
Timothy Sedlak from Florida pleaded guilty to attempting to access an unnamed charity organisation's networks.
Ed Schultz will appear on the Free Trade, Fair Trade, or Phony Trade panel.
Chris Bryant MP says some of the 'highest level' security decisions are compromised.
Russian leader's popularity has risen with Donald Trump's endorsement.
Kiev's foreign minister demands Russia's veto powers to be curbed during discussions about Ukrainian crisis.
French politics has witnessed a profound change in rhetoric towards Russia.
"We all know what they are capable of in terms of reprisals," said director of Sciences Po institute.
Kara-Murza fell ill in February with symptoms almost identical to those of a 2015 alleged poisoning.
Snowden recently received a three-year extension of his Russian visa.
Garry Kasparov aired his thoughts on the Andrew Marr Show
President Vladimir Putin's order will enable people from the strife-torn areas to travel to Russia for work and study.
Donald Trump criticised the Obama administration for being too soft on Russia over the annexation of Crimea.
US constitution allows for the president to be replaced if unable to carry out duties of his office.