Russian elections: Anti-Putin rally held in Moscow
6 December 2011 Last updated at 05:41 GMT
Several thousand people have taken to the streets of Moscow shouting "down with Putin" as international observers in Russia's parliamentary elections speak of flagrant violations.
Some scuffles were reported and Russian police said they had detained more than 300 protesters. President Dmitry Medvedev has insisted the election had been fair and democratic.
Daniel Sandford reports.