On the same day, the Soviet 13th Guards Rifle Division commanded by Alexander Rodimtsev arrived in the city from the east side of the river Volga under heavy German artillery fire. The division's 10,000 men immediately rushed into the battle. On 16 September they recaptured Mamayev Kurgan and kept fighting for the railway station, taking heavy losses. By the following day, almost all of them had died. The Soviets kept reinforcing their units in the city as fast as they could. The Germans assaulted up to twelve times a day, and the Soviets would respond with fierce counter-attacks.