French warplanes pounded Islamic State positions in Syria on Sunday as police in Europe widened their investigations into coordinated attacks in Paris that killed more than 130 people.
Islamic State has claimed responsibility for Friday's suicide bombings and shootings, which have re-ignited a row over Europe's refugee crisis and drawn calls to block the arrival of more Muslim asylum-seekers.
French police have launched an international hunt for a Belgian-born man they believe helped organize the assaults with two of his brothers. One of the brothers died in the attacks, while the second is under arrest in Belgium, a judicial source said.
A further two French suicide attackers have been identified, police said, while the identity of four other assailants, who were all killed, was still under review.
France has been bombing Islamic State positions in Iraq and Syria for months as part of a U.S.-led operation. Following Friday's mayhem, Paris vowed to destroy the group. Underlining its resolve, French jets on Sunday launched their biggest raids in Syria to date, hitting its stronghold in Raqqa.
"The raid ... including 10 fighter jets, was launched simultaneously from the United Arab Emirates and Jordan. Twenty bombs were dropped," the Defense Ministry said. Among the targets were a munitions depot and training camp, it said.
The Paris attacks were seen causing a short-term sell-off in global stock markets and Asian shares fell on Monday, but few strategists expected a prolonged economic impact or change in prevailing market directions.
The investigation into Friday's attacks, the worst atrocity in France since World War Two, led swiftly to Belgium after police discovered two of the cars used by the Islamist militants had been rented in the Brussels region.
By Sunday, Belgian officials said they had arrested seven people in Brussels. But one of the people who had hired the cars slipped through the fingers of the police. He was pulled over on the French-Belgian border on Saturday, but later released.
Police named the man they were seeking as Salah Abdeslam, saying the 26-year-old was "dangerous". Although he was born in Brussels, French authorities said he was a French national.
"The abject attacks that hit us on Friday were prepared abroad and mobilized a team in Belgium that benefited ... from help in France," French Interior Minister Bernard Cazeneuve told reporters after meeting his Belgian counterpart in Paris.
Stunned by the carnage, thousands of people thronged to makeshift memorials at four of the sites where the attacks took place, laying flowers and lighting candles to remember the dead.
The death toll rose to 132, with three more people dying on Sunday from their wounds. Some 103 have been identified, including many young people and many foreigners, out relaxing on a Friday night in one of the world's most visited cities.
In a sign that at least one gunman might have escaped, a source close to the investigation said a Seat car believed to have been used by the attackers had been found in the eastern Paris suburb of Montreuil with three Kalashnikov rifles inside.
Police have formally named just one of the attackers: Ismael Omar Mostefai, 29, from Chartres, southwest of Paris. He was identified by the print from one of his fingers that was severed when his suicide vest exploded.
French media named the two other French assailants as Bilal Hadfi and Ibrahim Abdeslam.
Police said they had found a Syrian passport near one of the other dead gunmen. Greece said the passport holder had crossed from Turkey to the Greek islands last month and then registered for asylum in Serbia before heading north, following a route taken by hundreds of thousands of asylum seekers this year.
The news revived a furious a row within the European Union on how to handle the flood of refugees. Top Polish and Slovak officials poured cold water on an EU plan to relocate asylum seekers across the bloc, saying the violence underlined their concerns about taking in Muslim refugees.
Bavarian allies of German Chancellor Angela Merkel called for a reversal of her "open-door" refugee policy, saying the attacks underlined the need for tougher controls.
France has declared three days of national mourning and President Francois Hollande will make a rare address to the joint upper and lower houses of parliament on Monday at the Palace of Versailles, just outside Paris.
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