People walk through a destroyed area after a tornado swept through the town of Ringgold, Georgia, USA, 28 April 2011. The death toll in the south-eastern United States from a series of tornadoes has risen as high as 173, far higher than previously given, US media reported, citing authorities. EPA/ERIK S LESSER
Sheriff's deputies on duty in front of a destroyed restaurant after a tornado swept through the town of Ringgold, Georgia, USA, 28 April 2011. The death toll in the south-eastern United States from a series of tornadoes has risen as high as 173, far higher than previously given, US media reported, citing authorities. EPA/ERIK S. LESSER
A man looks at the damage at a hotel after a tornado swept through the town of Ringgold, Georgia, USA 28 April 2011. The death toll in the south-eastern United States from a series of tornadoes has risen as high as 173, far higher than previously given, US media reported, citing authorities. EPA/ERIK S LESSER
A destroyed McDonald's fast-food restaurant after a tornado swept through the town of Ringgold, Georgia, USA, 28 April 2011. The death toll in the south-eastern United States from a series of tornadoes has risen as high as 173, far higher than previously given, US media reported, citing authorities. EPA/ERIK S LESSER
A police officer walks through a destroyed neighbourhood after a tornado swept through Ringgold, Georgia, USA, 29 April 2011. The death toll in the south-eastern United States from a series of tornadoes has risen to as high as 173, far higher than previously given, US media reported, citing authorities. EPA/ERIK S LESSER
People view the destruction after a tornado swept through the town of Ringgold, Georgia, USA, 28 April 2011. The death toll in the south-eastern United States from a series of tornadoes has risen to as high as 173, far higher than previously given, US media reported, citing authorities. EPA/ERIK S LESSER
View of a destroyed gas station after a tornado swept through Ringgold, Georgia, USA, 29 April 2011. The death toll in the south-eastern United States from a series of tornadoes has risen to as high as 173, far higher than previously given, US media reported, citing authorities. EPA/ERIK S LESSER
Destroyed cars and a hotel are seen after a tornado swept through Ringgold, Georgia, USA, 29 April 2011. The death toll in the south-eastern United States from a series of tornadoes has risen to as high as 173, far higher than previously given, US media reported, citing authorities. EPA/ERIK S LESSER