Wearing a bullet-proof vest, a young woman sat in front of Russia's riot police.
On her lap was a copy of the Russian constitution, which she began reading to the heavily armoured police around her. Behind them was a demonstration calling for transparent Moscow elections, in which several people were injured.
The photo went viral within minutes and Olga Misik, 17, became a symbol of Russia's pro-democracy movement. Some compared the image to Tiananmen Square's Tank Man, who stood in a tank's path in Beijing in 1989.
"The situation in Russia is currently extremely unstable," Olga told the BBC.
"The authorities are clearly getting very scared if they are consolidating armed forces from different parts of the country to chase peaceful protesters. And people's mentality has changed, as I can see."