 The besiegers blocked the city's water supply and breached the walls before the final storming on 2 October led to the taking of the city of Kazan, the razing of its fortifications, and the massacre of much of the population.The "Kazan Chronicle" reports the killing of 110,000 – both civilians and garrison – and the release of 60,000–100,000 Russians whom the khanate had held captive.The fall of Kazan had as its primary effect the assertion of Moscow's control over the Middle Volga.