A man suspected of leaking Michael Schumacher's medical files has been found hanged in his cell, prosecutors in Zurich said.
The man, who was not named but described as a manager at Swiss helicopter company Rega, was arrested on Tuesday on suspicion of violating patient privacy and medical secrecy.
Prosecutors said there was no indication a third party was involved in the death.
Schumacher, who suffered severe head injuries in a ski accident in the French Alps last year, was transferred from Grenoble hospital to University Hospital of Lausanne on June 16 after emerging from a coma.
His patient details were kept anonymous.
Last month the French daily newspaper "Le Dauphine Libere" reported that leaked documents were being offered to European media for some 60,000 Swiss francs ($67,200).