According to updated data from OVD-Info, 839 people were detained at protests in Russia on September 9.
Most of the detainees - 354 people - in St. Petersburg. In second place in terms of the number of arrests is Yekaterinburg - 129 people.
OVD-Info reports that the number of detainees in St. Petersburg and Yekaterinburg is much higher. Not all data has been received from these cities yet.