Hundreds of Russian opposition supporters are being held by police following protests in the country's two largest cities against the results of Sunday's parliamentary elections.
Police said they had detained more than 300 people in St Petersburg and Moscow as protesters attempted to stage mass demonstrations for a second day on Tuesday.
Several thousand people first took to the streets of central Moscow late on Monday to protest against alleged fraud and voting irregularities after Vladimir Putin's United Russia retained power, albeit with a greatly reduced share of the vote.
Rory Challands reports.
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