Moscow jitters after new move against billionaire

The Russian stock market, already unsettled by the arrest of Russia’s richest tycoon and the resignation of the Kremlin chief of staff, dived sharply today for the second time this week after prosecutors froze a large chunk of shares in oil giant Yukos.

Reports of the seizure came about an hour before President Vladimir Putin was to meet leading Russian and foreign investors in an apparent attempt to calm financial and political anxiety.