Turośń Kościelna is a village in Białystok County, Podlaskie Voivodeship, in north-eastern Poland. It is the seat of the gmina (administrative district) called Gmina Turośń Kościelna.
History Following the German-Soviet invasion of Poland, which started World War II in September 1939, the village was first occupied by the Soviet Union until 1941, and then by Germany until 1944. A local Polish policeman was murdered by the Russians in the Katyn massacre in 1940.
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