As Russian citizens prepare to head to the polls on Sunday to vote in regional elections, a senior Russian diplomat has revealed that Moscow has uncovered a US interference effort involving a Silicon Valley tech giant and activists opposed to the government of Russian President Vladimir Putin.

Following a briefing on the matter, senior Russian diplomat Andrey Nesterenko told Russia's Interfax news agency that the US "certainly does" meddle in the Russian electoral processes, as RT reported. The revelation followed reports that Russia has resumed a major airstrike of a reputed terrorist stronghold in Idlib province over the objections of President Trump, who warned that such a strike would be a humanitarian disaster.