French billionaire industrialist Serge Dassault is to face trial on suspicion of stashing several million euros in Luxembourg and Liechstenstein, a source close to the investigation said Monday.

The case against the 90-year-old CEO of the Dassault Group, which holds a majority stake in Dassault Aviation, has been committed directly to trial without a preliminary inquiry, the source told AFP, adding that it will open on July 4.