France says it's "very concerned" about the disappearance of French-Algerian writer Boualem Sansal, who has not been heard from since he was reportedly taken into police custody upon his arrival in Algeria on Saturday.

President Macron joins calls for information about Franco-Algerian novelist Boualem Sansal, missing in Algiers.

French author Boualem Sansal upon his arrival at Algiers International Airport from Paris. At 75 years old, Sansal was detained by the Algerian General Directorate of Internal Security and is expected to face a prosecutor soon.

The concerns about his reported arrest come as another prominent French-Algerian writer Kamel Daoud is under attack over his novel Houris, which won France's top literary prize, the Goncourt. A woman has claimed the book was based on her story of surviving 1990s Islamist massacres and used without her consent.

French President Emmanuel Macron is "very concerned by the disappearance" of French-Algerian writer Boualem Sansal, his office said. Known for his strong stance against both authoritarianism and Islamism,

The French political class rose in defence of the French Zionist writer of Algerian origin, Boualem Sansal, and the uprising even reached the French President, Emmanuel Macron, who confided to his close associates that he was upset about what was happening to Sansal,

Alarm grew in France on Friday over the fate of a prominent French-Algerian novelist detained in the country of his birth, with his publisher urging his immediate release and President