Residents of the Far Eastern Russian city of Vladivostok complained on August 9 that a huge explosion had woken them up at around 3:30 a.m. local time. In their posts on social networks, they said the explosion had taken place in the area close to a navy base. Local politician Maksim Chikhunov said on Telegram that officers of the Federal Security Service (FSB) visited residents of homes located near the navy base, urging them not to tell anyone about the explosion. Eastern Military District officials said the explosion was linked to maneuvers by yjr Gromky corvette, without giving details. To read the original story by RFE/RL's Siberia.Realties, click here.