On Sunday, graffiti attacking Jewish people and homosexuals was found scrawled on a movie theater, an LGBT center, a university, a cemetery and the offices of left-wing political candidates, Radio France Internationale reported.
"Those hateful messages are a real danger for our republic," Socialist Mayor Pierre Cohen said in a statement. "It is our responsibility not to let this noxious atmosphere reminiscent of the inglorious past become established."
Also Sunday, a group of about 20 fans of the controversial comedian Dieudonne, who has been convicted for anti-Semitic insults, gathered in Toulouse's city square for a "quenelle party," Police said. A "quenelle" is a hand gesture popularized by Dieudonne that looks like a reverse Nazi salute. Dieudonne has said the gesture is means "anti-system."