[JURIST] The governor of St. Petersburg has ordered an investigation into allegations of human rights violations during a Sunday rally opposing the policies of Russian President Vladimir Putin [official website], according to a Monday press statement. Police arrested dozens of protesters [JURIST report] Sunday before and during the rally in St. Petersburg, just one day after some 200 anti-Putin protesters, including liberal United Civil Front [party website, in Russian] leader and former chess champion Garry Kasparov [official website, in Russian], were detained [JURIST report] at a similar rally in Moscow.

A city interior department spokesperson said authorities detained about 120 protesters Sunday in addition to about 250 demonstrators detained Saturday. RIA Novosti has more.