Ukraine hits oil and electricity facilities with drone attacks across Russia

No direct casualties in attack that Moscow says was a Ukrainian attempt to sabotage the Russian presidential election

• Exit polls show Putin winning huge majority in Russian presidential election with only one possible result - live

Ukraine launched 35 drones at targets across Russia including in the capital region, sparking a fire at an oil refinery and disrupting electricity supplies in several border areas but causing no direct casualties, the defence ministry in Moscow has said.

As Russians cast their ballots in the final day of voting for the country's presidential election, the ministry accused Kyiv of seeking to sabotage the vote after one of the biggest air operations on Russian territory since the invasion two years ago.