MOSCOW, August 23 - RAPSI. Central Election Committee deputy chairman Leonid Ivlev said it was up to the prosecutors office to determine the legality of calling for a vote against every incumbent.

Opposition leader Boris Nemtsov said earlier that he had organized a protest movement which calls on the people to cross the ballot-papers at the upcoming lower house elections scheduled for December 4, thereby protesting the allegedly unfair elections.

According to Ivlev this is not the first time the Russian election system has faced these kinds of challenges.