In addition to Irina Berlyand and Anatoly Akhutin, 9 more people were brought to the Tver police department in another paddy wagon. Among them are Vladimir Tor and Nikolai Krylov; the reasons for the arrests are unclear.
UPD (23:44): Nikolai Krylov was released from the police department after a preventive conversation with him.
UPD (23:54): All other detainees have also been released.