May Day demonstration in Russia

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.

Russian leftists parade during May Day celebrations in Saint Petersburg, Russia, on May 1, 2014.