Busk had a very active Jewish community before World War II. The first synagogue was built in 1502. The old Jewish cemetery was renowned. On July 1, 1941, German forces occupied Busk. The Jewish population was transferred to a ghetto then eliminated on May 21, 1943. 1500 Jews perished during this operation. A witness recalled of the executions of the Jews, "All middle-aged Jews were gathered to work. Then, they were taken to the execution site...while others dug the pits." Raisel Meltzak, a Jewish child from Busk, was among the first Holocaust survivors to have her testimony recorded when she was interviewed by David P. Boder at a home for displaced Jewish orphans in France on September 8, 1946.