UK names Berezovsky plot suspect
The unidentified man allegedly connected with the plot was arrested and later deported from the United Kingdom.
The self-exiled Russian billionaire temporarily fled the UK on the advice of Scotland Yard because of a plot to assassinate him.
The tycoon moved to England six years ago and had often made allegations about being the target of Russian security services.
In Russia, Berezovsky is due to go on trial in absentia on charges on embezzlement.
He is also wanted in Brazil for alleged money laundering.