The Socata TUM-700 single engine turboprop business jet crashed around 1030 GMT in Coulanges-la-Vineuse, 10 miles south of Auxerre. The plane had taken off from Annecy and was flying to a small airfield in Toussus-le-Noble, southwest of Paris.
Civil aviation authorities say the victims, all French, have not yet been formally identified. The cause of the crash is under investigation.