
A former top Federal Bureau of Investigation (FBI) official has been charged with violating US sanctions by aiding a sanctioned Russian billionaire, according to the US Department of Justice (DOJ).
In an indictment unsealed on Monday, prosecutors alleged former FBI agent Charles McGonigal worked on behalf of Russian energy magnate Oleg Deripaska, providing services that included seeking to have United States sanctions against Deripaska lifted and investigating a rival oligarch.