Russian PM Dmitry Medvedev accused of corruption by opposition activist Alexei Navalny

A leading Kremlin critic has accused Russia's Prime Minister Dmitry Medvedev of large-scale corruption, including amassing an illicit empire of mansions, yachts and vineyards.

Opposition figure Alexei Navalny has claimed the properties were bought with oligarchs' bribes and state bank loans, with the assets managed by Mr Medvedev's former university classmates, friends and a relative.

These include a luxury apartment block in Saint Petersburg with glass-walled lifts for cars so owners can view them in their living rooms.

However, Mr Navalny's allegations have been dismissed by the Moscow government as electioneering.

The anti-corruption campaigner rose to prominence during mass protests against Vladimir Putin's return as president in 2012.

Mr Navalny wrote in the report detailing the accusations: "Medvedev can steal so much and so openly because Putin does the same, only on a bigger scale."

The dossier alleged Mr Medvedev, who served as president from 2008 to 2012, had "openly created a corrupt network of charitable foundations through which he receives bribes from oligarchs and frantically builds himself palaces and vacation homes across the whole country".

But Mr Medvedev's spokeswoman brushed aside the claims, which she said had been made to promote Mr Navalny's presidential bid.

Natalya Timakova said: "Navalny's material is clearly electioneering in nature.

"It's pointless to comment on the propagandistic attacks of an oppositional convict."

Mr Navalny has announced he wants to stand against Mr Putin in 2018, but is currently barred from doing do after being re-convicted of fraud .

The European Court of Human Rights had ruled his previous trial was unfair.

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