Russian billionaire Alisher Usmanov has had his assets frozen as part of sanctions by the European Union.
The EU laid down the sanctions in response to Russia's invasion of Ukraine which started last week.
Ukraine reports 352 civilian deaths since the start of the invasion, including 14 children. The UN puts the civilian toll at 102, including seven children.
Russia promised on Monday that it would hit back against the EU following its support of Ukraine and warned the West against supplying weapons to the country.
Ukraine's president accused Russia of war crimes on Monday after Vladimir Putin's forces launched what were believed to be cluster and vacuum bomb attacks on the fifth day of their invasion.