Spokesman Henri Della Casa of the Geneva prosecutor's office said that the cars belonging to Teodorin Obiang Nguema, who serves as vice-president in the oil-rich West African state, were confiscated on Monday in the freight zone at Geneva's airport, the agency reports.
Mr Obiang has not yet commented on the seizure.
In 2012, France issued an arrest warrant for him and seized his Paris mansion and several of his luxury cars. Equatorial Guinea is one of Africa's largest oil exporters, but most of its 740,000 inhabitants live in poverty.
Here are some more snaps of the operation in progress. Car-towing has never looked so good: