On 10 February 1945, the German torpedo-boat T-196 brought about 300 survivors of the , which had been sunk by Soviet submarine S-13 to Kolberg. As the Red Army advanced on Kolberg, most of the inhabitants and tens of thousands of refugees from surrounding areas (about 70,000 were trapped in the Kolberg Pocket), as well as 40,000 German soldiers, were evacuated from the besieged city by German naval forces in Operation Hannibal. Only about two thousand soldiers were left on 17 March to cover the last sea transports.