Germans confirm radiation find is rare Polonium-210

German authorities said today they have found traces of the rare radioactive substance polonium-210 at an apartment visited by a contact of poisoned ex-spy Alexander Litvinenko before they met in London.

Prosecutors said they were investigating Dmitry Kovtun on initial suspicion of improper handling of radioactive material, but said any connection with Litvinenko’s death was for British police to clarify.