An even bloodier wave of pogroms broke out from 1903 to 1906 , at least some of them believed to have been organized by the Tsarist Russian secret police , the '' Okhrana '' . They included the Białystok pogrom of 1906 in the Grodno Governorate of Russian Poland , in which at least 75 Jews were murdered by marauding soldiers and many more Jews were wounded . According to Jewish survivors , ethnic Poles did not participate in the pogrom and instead sheltered Jewish families
Białystok pogrom
Białystok pogrom
History of the Jews in Poland