France has deported a radical Islamist preacher from Algeria said to have given pro-jihad speeches in a mosque in north-east Paris.
France is home to one of Europe's largest Muslim communities
Reda Ameuroud, 35, was sent back to Algeria on a ship from Marseille.
The French interior ministry said it is planning to expel 10 more radical Islamists in August.
Mr Ameuroud's brother, Abderahmane, 27, was sentenced to seven years in prison in May for helping two Tunisians who killed an Afghan commander in 2001.
Abderahmane Ameuroud, who has been permanently banned from French territory, is also suspected of involvement in the training of would-be jihadists in the forest of Fontainebleau, west of Paris.
The deportation "has been carried out without incident," said a ministry official.
Interior Minister Nicolas Sarkozy on Friday told the daily Le Parisien that a man of Algerian descent who had spoken "heinous words" against France was about to be expelled.
Mr Ameuroud is believed to be a member of the radical Salafist movement.
France is cracking down on extremists who preach violence in the wake of London's 7 July bombing.
France has expelled several people since the beginning of the year, including one imam.
Earlier in July, after a meeting with his counterpart in Madrid, Mr Sarkozy said France did not have to tolerate radical preaching "which on the pretext that it is happening in a place of worship calls for hate and murder".
"Those who persist in this way will systematically be the object of an expulsion procedure," he added.