France's lower house of parliament has approved extending French airstrikes against the Islamic State group in Iraq.
The vote comes days after the Paris attacks - the country's worst in decades.
France joined the United States in conducting airstrikes against the IS last year.
However, French law requires a vote on extending such operations after four months.
MPs were holding a parliamentary session dedicated to last week's violence.
They observed a minute's silence for the victims before singing the national anthem, the Marseillaise.
Addressing the session, Prime Minister Manuel Valls says "high risks" remain in the country.
"Dear members of parliament, at no time should we lower our guard. And I want to say with gravity to the nation's representatives and through you to our citizens that not only the global threat is still present but also that serious and high risks remain, linked to last week events."
French police say as many as six members of the terrorist cell that carried out the Paris attacks may still be at large.
Amid the hunt for accomplices, Bulgarian authorities say they have a Frenchman under arrest who is believed to have links to one of the Charlie Hebdo attackers.
The satirical weekly itself is defying the terror of last week by printing a new issue later today, with the cover featuring a crying Prophet Mohammed in a white turban and holding a sign that reads "I am Charlie" under the title: "All is forgiven".
