Especially suffered Kutubidiya island, which washed away the main residential structure. The great water avalanche claimed the lives of 45 thousand people. Many were left without shelter, food, clothing. Sandwip Island, with a population of 300 thousand people, half disappeared under the water. How many people have died on it, and how many were still alive - is unknown. Flooded and located on the coast of a major port city Sittagong a million people. On city streets the residents had to travel by boat.