For many years, Finnish historians estimated the Soviet losses to be around 17,000 men. The estimation was based on the interrogation of the prisoners of war captured in early January. Officers of the Soviet 27th Infantry Regiment had given their casualties at 70 percent and the Finns assumed that the strength of the 44th Division was over 20,000 men. Western historians conformed their figures to Finnish estimations. The Soviets challenged the number of casualties published in the Western world immediately in January and claimed to have lost no more than 900 men, mostly from frostbite, while inflicting an estimated 2,000 Finn fatalities. Later Finnish historians conducted further efforts to ascertain the number of Soviet casualties in the battle. The Finns captured over 5,000 rifles, and furthermore, the North Finland Group replaced 1,200 old rifles with the newer Soviet models. Most recent Finnish studies indicate that the Soviets lost at least 7,000–9,000 men.