The Paris prosecutor has said the fate of the suspected organiser of Friday's attacks remains unknown after a police raid on a flat ended in bloodshed.
Francois Molins told reporters Abdelhamid Abaaoud was not among eight people arrested during the raid in the Paris suburb of Saint Denis.
However, human remains found in the rubble of the flat had still to be identified, he said.
A woman blew herself up and another suspect was shot dead during the raid.
The building was so badly damaged that it is unclear if there is a third body in the rubble, an interior ministry spokesman said.
Abaaoud is said to have organised Friday's gun and bomb attacks in Paris, when 129 people were killed.
All of the victims of the attacks - which targeted a concert hall, cafes and the Stade de France stadium and were claimed by the so-called Islamic State (IS) group - have now been identified, the government says. Follow the latest live events
Media caption'5,000 bullets fired' during raidMr Molins said the police operation in Saint Denis had foiled a new attack, stopping a "new terrorist cell" that appeared to be ready to strike.
"At this time, I'm not in a position to give a precise and definitive number for the people who died, nor their identities, but there are at least two dead people," he added.
Details he gave of the operation in Saint Denis paint a picture of a ferocious battle
Police used 5,000 rounds of ammunition
The main building targeted was hit so hard it is now at risk of collapse
A body was found "riddled with impacts", which made it impossible to identify for now
Seven men and one woman were arrested
Image copyrightEPAImage caption Abdelhamid Abaaoud is seen here in an undated photo posing with the Islamic State flag However, Salah Abdeslam, a 26-year-old French national identified as a suspect in Friday's attacks, was not among them, he said - nor was Abdelhamid Abaaoud.
Also on Wednesday, a teacher at a Jewish school in the southern city of Marseille was stabbed by three men. Local police say his life is not in danger and that police are hunting the assailants. Raid in Saint Denis Image copyrightGetty Images04:20 (03:20 GMT) Shots ring out in the Rue du Corbillon, a few minutes' walk from the town hall of this rundown suburb of Paris, as anti-terrorist police raid a third-floor flat 07:03 Shooting continues intermittently - at least one person killed inside the flat and two police officers injured 07:20 Multiple explosions and intense gunfire heard 07:40 Local residents urged to stay indoors by the authorities
Media captionSalah Abdeslam's brother Mohamed and a cousin put candles on their balcony in Molenbeek - where a vigil is taking place07:56 Police sources report two deaths in the flat, including that of a woman who set off a bomb belt, and three more officers injured 09:17 Prosecutors announce the arrest of three men inside the flat, and a man and a woman nearby 11:26 Police announce end of operation 19:10 Paris prosecutor confirms arrests and says evidence suggests a new terrorist plot was foiled. Image copyrightReutersImage caption Masked French judicial police could be seen in the area
Media captionExplosions and gunfire heard in the Paris suburb of Saint-DenisMore than 400 people were wounded in Friday's attacks. Three of them are in a life-threatening condition.
IS said it had carried out the attacks in response to France's air campaign against its leadership in Syria, and pledged further bloodshed.
French President Francois Hollande said on Wednesday that IS threatened the whole world and he would be seeking a "large coalition" to work together to defeat the militant group.
What is Islamic State?
IS is a notoriously violent Islamist group which controls large parts of Syria and Iraq. It has declared its territory a caliphate - a state governed in accordance with Islamic law - under its leader Abu Bakr al-Baghdadi.
What does it want?
IS demands allegiance from all Muslims, rejects national borders and seeks to expand its territory. It follows its own extreme version of Sunni Islam and regards non-believers as deserving of death.
How strong is IS?
IS projects a powerful image, partly through propaganda and sheer brutality, and is the world's richest insurgent group. It has about 30,000 fighters but is facing daily bombing by a US-led multi-national coalition, which has vowed to destroy it. What is Islamic State? 'No timetable' for Syria strikes vote Are you in the area? Have you been affected by what has been happening? Do you have any information you can share? If it is safe to do so, you can get in touch by emailing haveyoursay@bbc.co.uk
Please include a contact number if you are willing to speak to a BBC journalist. You can also contact us in the following ways:
by Natalie de Vallieres and Biodun Iginla, France24 Political News Analysts
Latest update : 2015-11-15
French President François Hollande was quick to declare a state of emergency in the wake of Friday’s bloody terror attacks in Paris. But what does the "etat d'urgence" mean for the country and its citizens as they go about their daily lives?
The state of emergency measures are set out in a 1955 law and are designed to be used in “cases of imminent danger resulting from serious breaches of public order, or in case of events threatening, by their nature and gravity, public disaster”.
The measures give a number of exceptional powers to the authorities, including the right to set curfews, limit the movement of people and forbid mass gatherings, establish secure zones where people can be monitored and close public spaces such as theatres, bars, museums and other meeting places.
The state of emergency also gives more powers to investigators, such as the right to conduct house searches at any time without judicial oversight, enforce house arrest and confisate certain classes of weapons, even if people hold them legally.
A state of emergency can be put in place by the French president for a maximum of 12 days, after which he must get parliamentary approval to extend the measures. This would mean Hollande would need to get parliament's backing by November 25 to extend the measures he put in place on Friday.
The last time France declared a state of emergency was during rioting in the Paris suburbs in 2005. Parliament approved a three-month extension to the measures after they were first put into effect by then president Jacques Chirac.
A state of emergency has only been declared one other time since the end of France's 1962 war in Algeria. That was in December 1984 amid violence in New Caledonia, a French archipelago in the Pacific Ocean east of Australia.
Seven gunmen in Paris killed themselves with explosives vests and one was shot dead by the security forces. Who are they?
"Three co-ordinated teams" appear to have been behind Friday's attacks, according to Paris prosecutor Francois Molins.
One of the attackers, born in 1985, was from a Parisian suburb. He was known for petty crimes committed between 2004 and 2006. Intelligence services reported that he was radicalised in 2010 but he was not known to be part of any network.
An Egyptian passport was found on one of the attackers at the Stade de France, police sources told the French newspaper Le Parisien.
A second passport belonging to a Syrian, who was born in 1990, was also discovered. He was not known to French intelligence authorities. The holder of the Syrian passport found at the scene crossed into the European Union through the Greek island of Leros in October, a Greek government minister has said. This has not been confirmed by French authorities.
A heavily armed Macedonian man detained last week during a routine police check on a motorway in Germany may have been connected to the attackers, German officials have said. They believe he was bound for Paris.
Belgian officials have said three arrests have been made in Brussels in relation to the Paris attacks after police raided a neighbourhood of the Belgian capital on Saturday.
Le Parisien newspaper has quoted a spectator as saying one of the stadium attackers was a woman.
Three teams carried out the attacks in the French capital which killed 129 people and left more than 350 wounded, the Paris chief prosecutor says.
"We have to find out where they came from... and how they were financed," Francois Molins told reporters.
He said seven attackers had been killed, and that all had been heavily armed and wearing explosive belts.
Friday's attacks, claimed by Islamic State militants, hit a concert hall, a major stadium, restaurants and bars.
Mr Molins also said the arrests of three men in Belgium on Saturday were linked to the attacks.
Media captionPeople could be seen escaping from the Bataclan concert hall shortly after a series of explosionsSpeaking in Paris on Saturday evening, Mr Molins told reporters: "We can say at this stage of the investigation there were probably three co-ordinated teams of terrorists behind this barbaric act."
He also confirmed that one of the dead attackers had been identified as a 30-year-old Frenchman who had a criminal record but had never spent time in jail.
The man came from the town of Courcouronnes, 25km (15 miles) west of Paris. He had been identified by the security services as having been radicalised but had never been implicated in a counter-terrorism investigation.
Mr Molins said all seven militants had used Kalashnikov assault rifles and the same type of explosive vests.
In the latest development, French police have taken the father and brother of one of the attackers into custody, judicial sources told AFP news agency.
On Saturday evening, a tourist thought he saw something suspicious at the Pullman hotel near the Eiffel Tower and sparked a security alert. But a police search found nothing and the operation was called off. New and frightening watermark Bar reels from attack How will Paris cope? A new type of terrorism?
Media captionProsecutor Francois Molins: "We have to find out where they came from... and how they were financed"
The investigation
Mr Molins also gave details about the state of the investigation, which he said was at a very early stage.
He said police were focusing on two vehicles. One was a black Seat used by gunmen at two of the attacks and still untraced.
The other is a black Volkswagen Polo with Belgian registration plates found at the concert venue that was targeted.
He said this had been rented by a Frenchman living in Belgium.
He was identified while driving another vehicle in a spot check by police on Saturday morning as he crossed into Belgium with two passengers.
The BBC's Hugh Schofield in Paris says investigators are working on the theory that these three may be another team of attackers who managed to flee the scene.
The Greek authorities say two people under investigation by the French police had registered in Greece as Syrian refugees.
A Syrian passport was found near the body of one the attackers at the Stade de France.
An Egyptian passport has also been linked to the attacks.
Media captionHow the attacks in Paris unfolded on Friday nightFrench President Francois Hollande imposed a state of emergency after the worst peacetime attack in France since World War Two. It is also the deadliest in Europe since the 2004 Madrid bombings.
The violence began soon after 21:00 (20:00 GMT) as people were enjoying a Friday night out in the French capital.
A gunman opened fire on Le Carillon bar near the Place de la Republique in the 10th arrondissement (district) , before heading across the road to Le Petit Cambodge (Little Cambodia), killing a total of 15 people.
"We heard the sound of guns, 30-second bursts. It was endless," resident Pierre Montfort said.
A few streets away, diners sitting on the terrace of La Casa Nostra pizzeria were also fired on, with the loss of five lives.
Mr Molins said 19 people had been killed at the Belle Equipe bar in the 11th arrondissement, while the toll from the attack on the Bataclan concert hall stood at 89.
At about the same time, on the northern outskirts of Paris, 80,000 people who had gathered to watch France play Germany at the Stade de France heard three explosions outside the stadium.
President Hollande was among the spectators and was whisked away after the first blast.
Investigators had found the bodies of three suicide bombers around the Stade de France, Mr Molins said. Image copyrightReutersImage caption London's Tower Bridge was one of a number of landmarks around the world to display the colours of the French flag
Media captionA witness to the explosions at the Stade de France says he was saved by his mobile phoneWithin an hour, security forces had stormed the concert hall and all three attackers there were dead. Islamic State released a statement on Saturday saying "eight brothers wearing explosive belts and carrying assault rifles" had carried out the attacks on "carefully chosen" targets, and were a response to France's involvement in the air strikes on IS militants in Syria and Iraq.
Shortly before, President Hollande said France had been "attacked in a cowardly shameful and violent way".
"So France will be merciless in its response to the Islamic State militants," he said, vowing to "use all means within the law.. on every battleground here and abroad together with our allies".
Many officials buildings as well as Disneyland Paris have been closed, sports events have been cancelled and large gatherings have been banned for the next five days. Image copyrightEPAImage caption Paris is in mourning after Friday night's wave of attacks Image copyrightAFPImage caption French security forces are now on the highest state of alert Are you in the area? Have you been affected by what has been happening? Do you have any information you can share? If it is safe to do so, you can get in touch by emailing haveyoursay@bbc.co.uk.
Please include a contact number if you are willing to speak to a BBC journalist. You can also contact us in the following ways:
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