Russia's Prosecutor General's Office said on Wednesday it was demanding that fugitive tycoon Boris Berezovsky return assets worth over 300 million pounds ($465 million).
"We have uncovered assets worth more than 300 million pounds," Prosecutor General Yuri Chaika said.
Five criminal probes have been launched in Russia against the oligarch, the Prosecutor General's press service said, adding that among them are the organization of criminal groups, fraud and money-laundering cases.
Berezovsky, who now lives in the U.K. as a political refugee, was earlier sentenced in absentia to six years in prison for embezzling funds from Russia's flagship air carrier Aeroflot.
On Tuesday Aeroflot recovered $52 million embezzled by Berezovsky in 1996-1999.
Berezovsky was also earlier sentenced in absentia to 13 years in prison after being found guilty of embezzling 58 million rubles ($1.9 million at current rates) from the AutoVaz car plant in 1994.
MOSCOW, September 15 (RIA Novosti)