A curfew will be imposed tonight in a tough Paris suburb at the centre of 11 nights of violence.
Eric Raoult, the conservative mayor of Raincy, declared an "exceptional curfew" as extra police are drafted across France to deal any further violence.
It is the first such measure to be annouced since violence first flared in neighbouring Clichy-sous-Bois.
Meanwhile, a man who was attacked by a hooded youth while talking to a neighbour during the riots has died, becoming the first fatality of the unrest.
Police say Jean-Jacques Le Chenadec, 61, was beaten into a coma north of Paris last week and died of his injuries in hospital.
His widow said: "I want these people punished."
Mr Le Chenadec and his friend had been targeted before the attack by stone-throwing youths when they had tried to stop bins being vandalised.
France has suffered 11 nights of rioting, with the latest wave leaving 30 police officers injured and more than 1,400 cars torched.
A total of 395 people were also arrested, bringing the total since trouble first erupted to more than 1,200.
Police were shot at during an ambush in the suburbs of Paris as hundreds of people took to the streets across the country.
Riot police prepare for more violence Rocks and fire bombs were also thrown at patrols.
Officials are now drafting in extra officers to deal with any further violence.
The latest unrest came amid calls from President Jacques Chirac to restore order as an absolute priority.
He held a special meeting of security officials and ministers, after which he said: "The law must have the last word."
He promised to arrest, judge and punish those guilty of spreading violence and fear.
"The Republic is quite determined, by definition, to be stronger than those who want to sow violence or fear."
Prime Minister Dominique de Villepin said his government would step up security wherever it was needed.
"We cannot accept any no-go areas," he added.
The rioting began in Paris suburbs more than a week ago after two youths were electrocuted in a power sub-station while reportedly fleeing police.
The unrest quickly spread, becoming an outburst of anger and disdain for French authority from youths angry at high unemployment, poor housing and discrimination.
Much of the anger has focused on Interior Minister Nicolas Sarkozy, who inflamed passions by referring to troublemakers as "scum".
The debate during the violence has looked at the social fabric of the country and the position of people in minority communities.