"The Investigative Committee detained Alexander Mylnikov, whose whereabouts were being established, during the investigation of the criminal case on the riots and the use of violence against representatives of authority", the committee said.
A wave of unauthorised protests in Moscow started in mid-July after the election commission barred several opposition politicians from participating in the 8 September election, stating they had failed to gather a sufficient number of signatures of support the bid.
As a result, after several clashes, some 1,700 participants were detained by the authorities. Several protesters have been charged with civic unrest and assaulting police officers. Several of them even have received prison sentences, but later the charges against five protestors were dropped, with some of the others released under house arrest.