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