Fifteen bidders have reportedly made firm offers for the French government's stakes in three of the country's toll road operators which are being privatisated with a price tag of €13bn ($15.3bn).

The binding offers have been made as the second round of an auction for Autoroutes du Sud de la France, Autoroutes Paris Rhin Rhône and Société des Autoroutes du Nord et de l'Est de la France, came to an end last night, Les Echos reports today.