The mastermind of Paris attack Moroccan-origin Belgian jihadist Abdelhamid Abaaoud and a women were reportedly killed in the operation in northern Paris.
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.
Roads have been blocked off around Rue de la Republique in Saint Denis, in the same district as the Stade de France, where suicide attackers detonated bombs on Friday.
Several police officers had been wounded.
Belgian Abdelhamid Abaaoud, 27, had been thought to have organised Friday’s attacks from Syria, but is now believed to have been one of those in the St Denis apartment.
