Families and friends of a growing number of Europeans imprisoned in Iran have gathered in Paris to call for their release.
The French government this week denounced the plight of seven French citizens held in Iranian prisons, calling the detentions âunjustifiable and unacceptableâ.
Iran has detained a number of foreigners and dual nationals over the years, accusing them of espionage or other state security offences.
Many were convicted and sentenced after secretive trials in which rights groups said they were denied due process.
The supporters said all were wrongly accused and some were in fragile physical or psychological health, or placed in isolation.
The statement added that the detainees are deprived of the most basic rights, and unable to contact loved ones.
Arnaud was arrested on September 28 as he was traveling in Iran as a tourist, according to Franceâs foreign ministry.
Earlier on Saturday, dozens of people gathered in a park beneath the Eiffel Tower to show support for detained Belgian aid worker Olivier Vandecasteele.
Vandecasteele, who worked for many years for aid group Doctors of the World, was arrested in Tehran in February 2022.
Doctors of the World said the conditions of his detention were putting Vandecasteeleâs life at risk.
Most of the European prisoners were detained before the protests that have shaken Iran since September over the death of a young woman, Mahsa Amini, in police custody.
Concerns about the detentions have grown as Iranian authorities have cracked down on the protesters.