A former KGB agent suspected of killing Aleksandr Litvinenko says he will not cooperate with a British inquest into the Kremlin critic's death.
Andrei Lugovoi told a news conference in Moscow that Britain wants to hide the truth about Litvinenko's death by keeping evidence secret.
He said he had "no hope of finding justice" in Britain.
Litvinenko, a former Russian spy, died in London in 2006 from polonium poisoning.
Lugovoi met with Litvinenko the day he fell ill but denies any involvement in his death.
Russia has refused to extradite Lugovoi for questioning, but he has appointed lawyers to represent him in the British coroner's inquest.
Last month, a British coroner ruled that sensitive evidence allegedly revealing Litvinenko's ties to Britain's MI6 intelligence agency will be examined in secret.
Based on reporting by Interfax, Reuters, and the BBC