Germany to seal nuclear dump in former communist east

German authorities plan to seal an underground nuclear dump in the former communist east with four million tonnes of concrete to contain its radioactivity for at least 150,000 years.

Sealing the Morsleben waste depot in Saxony-Anhalt state could take up to 20 years and will cost the federal government about €2bn, said Wolfram Koenig, head of the Federal Office for Radiation Protection.