PARIS — A Moroccan pop star already facing several accusations of sexual assault has been charged again this week with rape on the French Riviera, after a woman accused him of assaulting her in his hotel room.

The singer, Saad Lamjarred, who is popular across the Arab world, was arrested on Sunday in Gassin, near the seaside resort of Saint-Tropez, famous for its jet-setters and night life.

After he was questioned by the police in Saint-Tropez, on Tuesday he was charged with rape and placed under formal investigation, according to the prosecutor’s office in Draguignan, a French town farther north in the Var region.

Pierre Arpaia, a deputy prosecutor in Draguignan, said that the singer had been released on bail of 150,000 euros, or about $175,000, and that he had been barred from leaving France without authorization.