The Russian Federal Security Service (FSB) said on Friday it had uncovered a cell of the ISIS group that was planning imminent terror attacks in the country's second city Saint Petersburg.
A cold wave across Europe has taken at least 27 lives in the past few days, including those of several migrants and homeless people, and victims of accidents due to icy roads.
Russia's foreign ministry has requested President Vladimir Putin to expel 35 American diplomats from the country in a tit-for-tat response to a similar move by Washington, Foreign Minister Sergei Lavrov said Friday.
Russia's security service says on Saturday it has detained 10 people with alleged links to ISIL terrorist group on suspicion of plotting armed attacks in Moscow and Saint Petersburg.
President Vladimir Putin on Monday reappeared in public after an unusually long 10-day absence that unleashed frenzied speculation about the whereabouts and health of the Russian strongman.