Paris attacks suspect Salah Abdeslam, appearing before French investigating judges for the first time on Friday, refused to speak, his lawyer told broadcaster BFM-TV.
"He did not wish to make a statement today," the broadcaster quoted French lawyer Frank Berton as saying. Berton said Abdeslam would make a statement later without giving a specific date.
Abdeslam had been brought to the court in central Paris under high security from Fleury-Merogis prison in a southern suburb, where he is being held in isolation under 24-hour surveillance.
He is suspected to be the only surviving member of the group directly responsible for killing 130 people in Paris terrorist attacks last November.