- French police on Monday raided the homes of dozens of suspected Islamist militants three days after the beheading of a teacher.
- The raids came a day after tens of thousands of people took part in rallies countrywide to honour slain teacher Samuel Paty.
- Gerald Darmanin said the swoop on Islamist networks was designed to send a message that "enemies of the Republic" would not enjoy "a minute's respite".
French police on Monday raided the homes of dozens of suspected Islamist militants three days after the beheading of a teacher who had shown his pupils cartoons of the Prophet Mohammed, the interior minister said.
The raids came a day after tens of thousands of people took part in rallies countrywide to honour slain teacher Samuel Paty and to defend freedom of expression.
Gerald Darmanin said the swoop on Islamist networks was designed to send a message that "enemies of the Republic" would not enjoy "a minute's respite".
He said over 80 investigations had been launched for online hate speech following the attack, which has drawn parallels with the 2015 massacre at Charlie Hebdo satirical magazine, where 12 people were gunned down for publishing the Mohammed cartoons.
That attack - the first in a string of assaults that have killed over 240 people in France - brought over a million people onto the streets of Paris to denounce extremism.
Paty, 47, was murdered on his way home from the school where he taught in a suburb northwest of Paris on Friday afternoon.
A photo of the teacher and a message confessing to his murder was found on the mobile phone of his killer, an 18-year-old Chechen man Abdullakh Anzorov, who was shot dead by police.
Eleven people are being held over the attack, including a known Islamist militant and the father of one of Paty's pupils who had railed against him online and called for his dismissal.
Darmanin accused the two men of having issued a "fatwa" against Paty, using the term for an Islamic edict that was famously used to describe the 1989 death sentence handed down against writer Salman Rushdie by Iran's Ayatollah Khomeini.
"They apparently launched a fatwa against the teacher," the minister told Europe 1 radio.
Anzorov's family arrived in France when he was six from the predominantly Muslim Russian republic of Chechnya.
Four members of his family, which sought asylum in France, are being held for questioning.
Paty, who has been eulogised by pupils and parents as a dedicated teacher, had been the target of online threats for showing the Mohammed cartoons to his civics class.
Depictions of the prophet are widely regarded as taboo in Islam.
According to his school, Paty had given Muslim children the option to leave the classroom before he showed the cartoons, saying he did not want their feelings hurt.
A national tribute is to be held for Paty on Wednesday.
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