A Paris newspaper says seven-time Formula One world champion Michael Schumacher is being treated with a cutting-edge stem-cell therapy in one of the French capital's hospitals.
The Paris hospitals authority, citing France's strict medical privacy rules, said it could not comment on a report in Le Parisien that Schumacher was admitted under tight guard to the Georges-Pompidou hospital early this morning.
The paper says the treatment is scheduled to be administered overnight New Zealand time.
His long-time manager Sabine Kehm did not respond to emailed requests for comment.
Schumacher suffered a near-fatal brain injury in a 2013 skiing accident in the French Alps.
Schumacher's condition stabilized after he was placed in a drug-induced coma, from which he later emerged. Since September 2014, he has been cared for at home on the shores of Lake Geneva.