Andrei Grigoryev is a correspondent in Kazan for RFE/RL's Tatar-Bashkir Service.
Built in 1910, the Rajab is Kazan's oldest wooden mosque and boasts a long and eventful history, including a fire, the Bolshevik execution of its first imam, and forced closure by the Soviets.
Islamic leaders in Tatarstan have been asked to provide access to mosques in preparation for the launch of a surveillance system under orders from the Russian region's Ministry of Digital Development and Communications.