Russia : Police must stop ` ` mistreatment '' of peaceful protesters , rights group Amnesty says . An opposition rally in Moscow fails to materialize but police are out in force . Mikhail Gorbachev calls elections unfair , a Russian report says . They protest election results , which returned Vladimir Putin 's government to power .
NEW : Russia must stop `` mistreatment '' of peaceful protesters , rights group Amnesty says . An opposition rally in Moscow fails to materialize but police are out in force . Mikhail Gorbachev calls elections unfair , a Russian report says . Demonstrators protest election results , which returned Vladimir Putin 's party to power .