The founder of the French breast implant company at the centre of an international health scare is reportedly facing manslaughter charges. Jean-Claude Mas was arrested at his home in southern France.
A French police source said he will be held for 48 hours while investigators decide whether to charge him with involuntary manslaughter and causing injury.
The former chief financial officer of the now-closed firm, PIP, has also been detained as part of the investigation.
It was shut down after regulators discovered it was using industrial grade gel in its implants. The French government and several others around the world have advised women with PIP implants to have them removed.
Mas has admitted using a non-medical substance in his product but claims it does not pose a health risk. The probe was opened after a woman who had had the implants died from cancer.