Divers from the special unit of a fire brigade put sand bags in flood water at Wisla river in Warsaw on May 21, 2010. Flash floods caused by days of heavy rain falls have hit parts of central Europe, killing at least seven people, disrupting power supplies and forcing thousands of people from their homes. Southern Poland, parts of the Czech Republic and Slovakia and northern Hungary are among the worst affected regions. AFP PHOTO / JANEK SKARZYNSKI