(QHA) -

A BBC photo of a men's cubicle with twin toilets at a Sochi Olympics venue has caused a Twitter storm in Russia.

The picture from the Biathlon Centre tweeted by Moscow BBC correspondent was picked up by opposition leader Alexei Navalny among others. 

Mr Navalny queried how the budget for the games, said to be $50bn (£30bn; 1,700bn roubles), had been spent.

Elsewhere, the photo caused disbelief and much hilarity, with some linking it to the recent debate over gay rights.

People joked about Russia's controversial law on "gay propaganda", which led to calls from international campaigners to boycott February's games. 

"This is how they understand the needs of sexual minorities," was one quip.

Noting there was one toilet roll between two in the cubicle, another tweeter wrote: "Tear off some paper before you sit down." 

The Biathlon Centre was completed nearly two years ago, with investment from the Russian state gas company Gazprom. 

"The building is one of the biggest and most comfortable structures of its kind in the world," a company representative told Russia's Interfax news agency at the time.

QHA