The Łomża Ghetto was a Nazi ghetto created by on 12 August 1941 in Łomża, Poland; for the purpose of persecution of Polish Jews. Two months after Operation Barbarossa, the invasion of the Soviet Union, the Jews were ordered to move there in a single day, resulting in panic at the main entry on Senatorska Street adjacent to the Old Market (Stary Rynek). The number of Jewish men, women, and children forced into the ghetto ranged from 10,000 to 18,000. The survivors of anti-Jewish pogroms, murders, and expulsions in Jedwabne, Stawiski, Wizna, and Rutki-Kossaki, as well as refugees from other locales, were interned in the ghetto. Often, six families were housed there in a single room. The Ghetto was liquidated a year-and-a-half later on 1 November 1942, when all prisoners were transported aboa