SAINT-DENIS, France (AP) -- A woman wearing an explosive suicide vest blew herself up Wednesday as heavily armed police tried to storm a suburban Paris apartment where the suspected mastermind of last week's gun and bomb rampage was believed to be holed up, police said.
They said one man was also killed and seven people arrested in the standoff, which began before dawn and continued more than six hours later, when a loud bang rang out around the streets near the apartment building.
Police said one person was thought to be still inside the apartment, but it wasn't clear who.
A senior police official said he believed Abdelhamid Abaaoud, a Belgian Islamic State militant, was inside the apartment in the Paris suburb of Saint-Denis with five other heavily armed people when the raid started.
The official, who was not authorized to be publicly named according to police rules but is informed routinely about the operation, said scores of police stormed the building and were met with unexpectedly violent resistance.
Another police official not authorized to be publicly named because of police rules said four police officers were injured. No hostages were being held.
The Paris prosecutor's office said SWAT teams arrested three people in the apartment. It said they haven't been identified yet.
Another man and woman were detained nearby, the office said in a statement.
French President Francois Hollande held an emergency meeting with senior ministers at the Elysee Palace to monitor the raid.
Residents said an explosion shook the neighborhood shortly after 4 a.m. (0300GMT).
"We guessed it was linked to Friday night," said Yves Steux, barman at L'escargot restaurant 250 meters (yards) from the assault."My wife panicked and was scared and told me not to leave, but I ignored her. Life goes on."
Baptiste Marie, a 26-year-old independent journalist who lives in the neighborhood, said a second large explosion was followed by "two more explosions. There was an hour of gunfire."
Another witness, Amine Guizani, said he heard the sound of grenades and automatic gunfire.
"It was continuous. It didn't stop," he said. "It lasted from 4:20 until 5:30. It was a good hour. I couldn't say how many shots were fired, but it was probably 500. Hundreds, definitely. There were maybe 10 explosions."
Sporadic bangs and explosions continued, and at 7:30 a.m. (0630GMT) at least seven explosions shook the center of Saint-Denis. Associated Press reporters at the scene could hear what sounded like grenade blasts from the direction of the standoff.
Investigators have identified 27-year-old Abaaoud, a Belgian of Moroccan descent, as the chief architect of Friday's attacks in Paris, which killed 129 people and injured 350 others.
A U.S. official briefed on intelligence matters said Abaaoud was a key figure in an Islamic State external operations cell that U.S. intelligence agencies have been tracking for many months.
Police vans and fire trucks rushed to the scene north of Paris, less than two kilometers (just over a mile) from the Stade de France stadium. Three suicide bombers blew themselves up Friday near the stadium during an international soccer match with French President Francois Hollande in attendance.
In Saint-Denis on Wednesday, police cordoned off the area nearby, including a pedestrian zone lined with shops and 19th-century apartment buildings. Riot police cleared people from the streets, pointing guns at curious residents to move them off the roads.
Saint-Denis is one of France's most historic places. French kings were crowned and buried through the centuries in its famed basilica, a majestic Gothic church that towers over the area. Today the district is home to a vibrant and very ethnically diverse population and sees sporadic tension between police and violent youths.
Saint-Denis Mayor Didier Paillard said public transport was suspended and that schools in the center of town would not open Wednesday.
Seven attackers died in Friday's attacks, which targeted several bars and restaurants and the Bataclan concert hall, as well as the national stadium. The Islamic State group has claimed responsibility for the carnage.
Police had said before the raids that they were hunting for two fugitives suspected of taking part as well as any accomplices. That would bring the number of attackers to at least nine.
French authorities had previously said that at least eight people were directly involved in the bloodshed: seven who died in the attacks and one who got away and slipped across the border to Belgium.
However, there have been gaps in officials' public statements, which have never fully disclosed how many attackers took part in the deadly rampage.
On Tuesday, officials told The Associated Press they now believe at least one other attacker was involved and they were working to identify and track down that suspect. Three officials spoke on condition of anonymity because they were not authorized to provide details about the ongoing investigation.
Surveillance video obtained by the AP also indicated that a team of three attackers carried out the shootings at one of the cafes. The video was among evidence authorities used in concluding that at least one other attacker was at large, the French officials indicated.
The brief clip shows two black-clad gunmen with automatic weapons calmly firing on the bar then returning toward a waiting car, whose driver was maneuvering behind them. Authorities believe the car is the same black SEAT-make vehicle that was found Saturday with three Kalashnikovs inside.
Police have identified one subject of their manhunt as Salah Abdeslam, whom French police accidentally permitted to cross into Belgium on Saturday. One of his brothers, Brahim, blew himself up in Paris.
Meanwhile, French fighter jets attacked Islamic State targets in Syria for a third night. The French defense ministry said 10 jets had hit two Islamic State command centers in the militants' base of Raqqa, Syria.
The Paris attacks have galvanized international determination to confront the Islamic State group in Syria and Iraq, bringing France, Russia and the United States closer to an alliance.
Russian President Vladimir Putin ordered the missile cruiser Moskva, currently in the Mediterranean, to start cooperating with the French military on operations in Syria.
Meanwhile, U.S. Secretary of State John Kerry said a cease-fire between Syria's government and the opposition could be just weeks away. He described it as potentially a "gigantic step" toward deeper international cooperation against IS.
France - and the rest of Europe - remain on edge four days after the attacks. Two Air France flights bound for Paris from the U.S. were diverted Tuesday night - one to Salt Lake City and one to Halifax - because of anonymous threats received after they had taken off. Both were inspected and cleared to resume their journeys.
In the German city of Hannover, a soccer game between Germany and the Netherlands was canceled at the last minute and the stadium evacuated by police because of a bomb threat.
Lower Saxony state Interior Minister Boris Pistorius said the match was called off after "vague" information that solidified late in the day.
No arrests have been made and no explosives found. Pistorius said this may be because the plot was called off after the game was canceled.
"We won't know what would have happened if we didn't cancel it," he said.
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Keaten reported from Paris. Associated Press writers Thomas Adamson in Saint-Denis, Philippe Sotto, Sylvie Corbet, Angela Charlton and Jill Lawless in Paris and David Rising in Berlin also contributed.
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This story has been corrected to show that the witness's name is Amine Guizani, not Amin.
© 2015 The Associated Press.
