Armed police have raided a flat in the north Paris suburb of Saint Denis in an operation linked to Friday's attacks.
A female suspect blew herself up with a suicide belt, a prosecutor says. Some reports suggest two suspects died. There were explosions and gunfire in the operation, which is continuing.
Five people have also been arrested.
The focus of the operation is Abdelhamid Abaaoud, the alleged mastermind of the Islamic State-claimed attacks that killed 129 people.