Riots that started in Paris' lower-class suburbs last week and resulted in 250 arrests of predominantly Muslim youths Saturday moved into the capital of France early Sunday morning.
By 1 a.m., a spokesman for the national police reported 13 vehicles torched in the capital - and 607 vehicles burnt overall - during the 10th straight night of rioting. Totals are expected to rise by morning.
Roughly 2,300 police were brought into the Paris (search) region to bolster security, France-Info said. They were sent out as small teams of officers backed by a helicopter to track and chase down youths who sped from one attack to another in cars and on motorbikes.
The violence — originally concentrated in neighborhoods northeast of Paris with large immigrant populations — has spread across France (search), extending west to the fields of Normandy and south to resort cities on the Mediterranean. Attacks were reported in Cannes (search) and Nice.
In the Normandy town of Evreux (search), arsonists burned at least 50 vehicles, part of a shopping center, a post office and two schools, the police spokesman, Patrick Hamon, said.
Five police officers and three firefighters were injured battling the blazes, he said.
The unrest is forcing France to confront long-simmering anger in its suburbs, where many Africans and their French-born children live on society's margins, struggling with unemployment, poor housing, racial discrimination, crime and a lack of opportunity.
The violence erupted Oct. 27 following the accidental electrocution of two teenagers who hid in a power substation, apparently believing police were chasing them.
The anger spread to the Internet, with blogs mourning the youths.
Along with messages of condolence and appeals for calm were insults targeting police, threats of more violence and warnings that the unrest will feed support for France's anti-immigration extreme right.
"Civil war is declared. There will no doubt be deaths. Unfortunately, we have to prepare," said a posting signed "Rania."
"We are going to destroy everything. Rest in peace, guys," wrote "Saint Denis."
The unrest reached Paris late Saturday. Hamon had no immediate information on the neighborhoods where the vehicles were torched. Paris police headquarters said three cars were damaged by fire in the Republique section, northeast of City Hall.
"It's copycat acts," Hamon said. "All these hoodlums see others setting fires and say they can do it, too."
Evreux, 60 miles to the west, appeared to suffer the worst damage Saturday. The burning of the shopping center showed that "there is a will to pillage," Hamon said. "This has been true since the start," referring to grocery stores, video stores and other businesses that have been set afire.
The unrest has taken on unprecedented scope and intensity, reaching far-flung corners of France on Saturday, from Rouen in Normandy to Bordeaux in the southwest to Strasbourg near the German border.
However, the Paris region has borne the brunt.
In quiet Acheres, on the edge of the St. Germain forest west of Paris, arsonists burned a nursery school, where part of the roof caved in, and about a dozen cars in attacks the mayor described as "perfectly organized."
Children's photos clung to the blackened walls, and melted plastic toys littered the floor. Residents gathered at the school gate, demanding that the army be deployed or suggesting that citizens band together to protect their neighborhoods.
Mayor Alain Outreman tried to cool tempers.
"We are not going to start militias," he said. "You would have to be everywhere."
Cars were torched in the cultural bastion of Avignon in the south and the resort cities of Nice and Cannes, a police officer said.
Arson was reported in Nantes in the southwest, the Lille region in the north and Saint-Dizier in the Ardennes region east of Paris. In the eastern city of Strasbourg, 18 cars were set alight in full daylight, police said.
In one attack, youths in the eastern Paris suburb of Meaux prevented paramedics from evacuating a sick person from a housing project. They pelted rescuers with rocks and then torched the waiting ambulance, an Interior Ministry official said.
Most of the overnight arrests occurred near Paris. Interior Minister Nicolas Sarkozy warned that those convicted could face severe sentences for burning cars.
"Violence penalizes those who live in the toughest conditions," he said after a government crisis meeting.
Most rioting has been in towns with low-income housing projects where unemployment and distrust of police run high. But in a new development, arsonists were moving beyond their heavily policed neighborhoods to attack others with less security, Hamon said.
"They are very mobile, in cars or scooters. ... It is quite hard to combat" he said. "Most are young, very young, we have even seen young minors."
There appeared to be no coordination between separate groups in different areas, Hamon said. But within gangs, he added, youths are communicating by cell phones or e-mails.
"They organize themselves, arrange meetings, some prepare the Molotov cocktails," he said.
In Torcy, close to Disneyland Paris, a youth center and a police station were set ablaze. In Suresnes, on the Seine River west of the capital, 44 cars were burned in a parking lot.
"We thought Suresnes was calm," said Naima Mouis, a hospital employee whose car was torched.
On Saturday morning, more than 1,000 people marched through one of the worst-hit suburbs, Aulnay-sous-Bois. Local officials wore sashes in the red, white and blue of the French flag as they filed past housing projects and the wrecks of burned cars. One white banner read, "No to violence."
Anger was fanned days ago when a tear gas bomb exploded in a mosque in Clichy-sous-Bois — the northern suburb where the youths were electrocuted.
Sarkozy also has inflamed passions by referring to troublemakers as "scum."
The Associated Press contributed to this article.