Maral Erman, one of the survivors, said the plane was shaking during take-off, Tengri News website reports. She said it first felt as if the plane had landed, but in fact "we hit something"."There wasn't much chaos on board," she said. "There were no screaming." Ms Erman said the crew opened the exit for passengers to get out of the aircraft.She added that she later saw the plane had "split in half".