MOSCOW — The legal troubles of Aleksei A. Navalny, Russia’s most high-profile opposition leader, continued on Thursday with a court in Moscow fining him the equivalent of almost $5,000 on charges of organizing a public event without permission from the authorities.
The court also fined two of Mr. Navalny’s associates, Leonid M. Volkov, the chief of staff of his unsanctioned run for the Russian presidency, and Nikolai N. Lyaskin, the coordinator of the campaign’s Moscow branch.
Mr. Navalny is seeking to take part in next year’s presidential election, despite being barred from doing so because of an earlier conviction he calls politically motivated. In the meantime, his strategy is to make his exclusion so embarrassing for the Kremlin that he is permitted to run.
This time, Mr. Navalny found himself on trial for something far less attention-grabbing: the distribution of fliers by campaign volunteers on July 8 and 9, which the authorities defined as a “public event in a covert form” and say should have been approved by the government.
Many activists who campaigned that day were detained by the police, and some said they were beaten. Gleb O. Pavlovsky, a political consultant who once worked for the Kremlin, told the Echo of Moscow radio station that the crackdown was “an attempt to destroy the campaign machine” that Mr. Navalny is creating. The campaign was attracting too many volunteers, Mr. Pavlovsky said.