Over the summer of 1941, hundreds of Jewish men and women were taken out of Koło Ghetto and deported to slave labor camps. These transports were apparently part of a deportation wave within the Wartheland, which might have been related to the German war effort following the invasion of the Soviet Union on June 22. Thousands of Jewish men and women were transported to slave labor camps under SS administration, or to others that were run privately or by public offices.
In August 1941, some 100 women from Koło town were deported to a camp near Wrocław (Breslau) for slave labor. The means of transportation was most likely buses or trucks.
On December 8, 1941, the Nazi authorities began to liquidate Koło ghetto, and its inhabitants were deported to Chełmno extermination camp (Kulmhof)....