NEW : Three confirmed dead in Georgia , Birmingham . Earlier Wednesday a tornado was believed to have struck the northern Alabama community of Cullman , damaging a hospital , ripping the roof off the courthouse and pummeling a number of residences , authorities said . NEW : Ringgold nuclear power plant loses power . Alabama 's mayor says many people are missing and 25 are injured . Alabama 's emergency management director says 25 people have been killed .
NEW : Three confirmed dead in Georgia , Birmingham . NEW : Ringgold nuclear power plant loses power . Alabama 's mayor says many people are missing and 25 are injured . Alabama 's emergency management director says 25 people have been killed .