Vial also told reporters that the French state could take part in any new operation involving Air France-KLM's capital.

France has a 28.60% stake in Air France-KLM, according to data from Refinitiv.

Air France-KLM CEO Ben Smith said last month the company was looking at raising fresh funds soon after completing a share issue earlier this year, bolstered by a positive trend in bookings since the United States announced it would reopen to European travellers.

(Reporting by Jean-Michel Belot; Writing by Matthieu Protard; Editing by Kirsten Donovan)