Americans in the South and Midwest were Sunday searching for survivors and beginning to clear up the damage wrought by a series of around 100 tornadoes which killed at least 37 people, dpa reported. According to CNN, 18 people were killed in Kentucky, 14 in Indiana, three in Ohio and one each in Alabama and Florida. The tornadoes, which the National Weather Service called an "enormous outbreak" first touched ground on Friday and lashed a vast swath of the central United States on Friday from Alabama to Indiana. Some of the worst devastation was reported in the southern Indiana towns of Marysville and Henrysville, 15 kilometres apart near the Ohio River. With populations of about 2,000 each, Marysville was described as levelled, while Henrysville was severely damaged.