Franco-Algerian writer Boualem Sansal, 80, has been detained in Algeria since November 16 under charges of "endangering state security.

" His arrest followed comments he made to a French media outlet about historical territorial disputes between Algeria and Morocco.

Despite his age and serious illness, Sansal remains in a prison hospital in Algiers, sparking international concern.

His French lawyer, François Zimeray, has been denied a visa to visit him, while local lawyers have faced challenges in representing him.

The case has drawn criticism from human rights advocates and literary figures, with many accusing the Algerian regime of suppressing dissent.

A recent event at the Institut du Monde Arabe in Paris highlighted his plight, with prominent writers and intellectuals calling for his release.

Supporters urge French President Emmanuel Macron to take diplomatic action to secure Sansal's freedom.