🌐EnglishEnglishBahasa IndonesiaDeutschFrançaisSvenskaРусскийفارسیEntityQ1546916· pop 7· linked from 30 articlesSoviet submarine S-21935 S-class submarineConnectionsS-class submarineEntityRussianEntityCategories1935 ships1940 in the Soviet UnionBaltic Sea articles missing geocoordinate dataLost submarines of the Soviet UnionMaritime incidents in January 1940Ships built in the Soviet UnionShips sunk by minesSoviet S-class submarinesSoviet Union–Sweden relationsSubmarines lost with all handsWorld War II shipwrecks in the Baltic SeaWorld War II submarines of the Soviet Union