The administration of St. Petersburg did not allow the participants of the religious procession dedicated to the birthday of Nicholas II to cross Nevsky Prospekt.
The organizers were going to hold a procession from the Savior on Blood to the Kazan Cathedral, but the city authorities decided that crossing the avenue by a large group of people would interfere with traffic. The organizers of the procession promised that they would cross the Nevsky in small groups at a traffic light or through an underpass, but the authorities still demanded to change the route.
According to believers, this demand is "an open confrontation between the city administration and the performance of Orthodox rites."
Sources