A contact of the murdered ex-spy Alexander Litvinenko receives treatment in Moscow.
Scaramella said he showed Litvinenko emails from a confidential source identifying the possible killers of Russian investigative journalist Anna Politkovskaya and listing other potential targets for assassination – including himself and Litvinenko.
On his deathbed, Litvinenko blamed Vladimir Putin, the Russian president, for involvement in his poisoning – an allegation that the Kremlin denied.
British police had no comment on Scaramella’s arrest. However, the charges against him were not believed to be directly related to the poisoning case.
Scaramella also was hospitalised for several days in London and he said doctors told him he had received five times the lethal dose of polonium-210, although he showed no symptoms. He left the hospital a few days later.