The Civil Committee head Olga Kurnosova seen in a police van after being detained before the procession to Marsovo Pole, the location of the opposition's authorized rally.

08.07.2012#1175721

Police officers detain The Left Front coordinator Sergei Udaltsov near Oktyabrsky concert hall in St. Petersburg before the procession to Marsovo Pole, the location of the opposition's authorized rally.

08.07.2012#1175720

Police officers detain The Left Front coordinator Sergei Udaltsov, center, and The Civil Committee head Olga Kurnosova near Oktyabrsky concert hall in St. Petersburg before the procession to Marsovo Pole, the location of the opposition's authorized rally.

08.07.2012#1175619

OMON police officers seen standing around The Left Front coordinator Sergei Udaltsov, left, near Oktyabrsky concert hall in St. Petersburg before the procession to Marsovo Pole, the location of the opposition's authorized rally.

08.07.2012#1175618

The Left Front coordinator Sergei Udaltsov, left, and his supporters call on people to walk in scattered groups in a procession to Marsovo Pole, the location of the opposition's authorized rally.

08.07.2012#1175617

The Civil Committee head Olga Kurnosova, center, The Left Front coordinator Sergei Udaltsov, right, and their supporters call on people to walk in scattered groups in a procession to Marsovo Pole, the location of the opposition's authorized rally.

08.07.2012#1175616