Pussy Riot's Nadezhda Tolokonnikova is back in police custody

Nadezhda Tolokonnikova, perhaps the most famous member of the group Pussy Riot, was detained earlier today in downtown Moscow at a small unsanctioned demonstration, where Tolokonnikova and another activist, Catherine Nenasheva, dressed in prison inmate uniforms and sewed together a Russian flag. The protest took place on Russia Day, a post-Soviet national holiday celebrated annually on June 12 since 1992.

"They grabbed us by the arms and legs and stuffed us into a police van," Tolokonnikova wrote on online, apparently on her mobile phone, from inside the van.

On August 17, 2012, Tolokonnikova and Maria Alyokhina were convicted of "hooliganism motivated by religious hatred", and sentenced to two years in prison. After serving 21 months, both women were released on December 23, 2013, after the Duma approved a federal amnesty.

Update: After a few hours, police released Tolokonnikova and Nenasheva without pressing any charges. A spokesperson for the Moscow police department later stated that the two women were detained as a preventative measure to keep them from disturbing the peace.