Voina performance art group activist Oleg Vorotnikov, right, with his son Kasper seen near OMON police van during the opposition rally staged on St. Petersburg's Nevsky Prospekt in support of Russian Constitution's Article 31.
- Location: St. Petersburg, Russia
- Event date: 31.03.2011
- Date published: 02.04.2011
- Author: Valenti Ilushin
- Source: Sputnik
- Credit: Sputnik
- Original: Digital
- Media: JPEG, 4368x2912px, 1.7Mb