SAINT-DENIS, France — Amid gunfire and explosions, police raided a suburban Paris apartment where the suspected mastermind of last week’s attacks was believed to be holed up Wednesday. The siege ended with two deaths and seven arrests but no clear information on his fate.

The dead were a woman who blew herself up with an explosive vest and a man hit by projectiles and grenades at the end of the raid, which began before dawn and continued for more than seven hours at the apartment building in the Paris suburb of Saint-Denis.

Paris prosecutor Francois Molins said the raid was launched after information from tapped telephone conversations, surveillance and witness accounts indicated that the suspected attacks planner, Abdelhamid Abaaoud, might be in a safe house in the district.

Authorities could not immediately confirm whether Abaaoud, a Belgian Islamic State militant, was killed or arrested Wednesday morning.

Abaaoud was believed to be in Syria after a January police raid in Belgium, but bragged in Islamic State propaganda of his ability to move back and forth between Europe and Syria undetected.