Some 200 people, including Belgian aid worker Olivier Vandecasteele, gathered on Saturday in front of the Hôtel de Ville (Town Hall) in Paris to demand the release of Louis Arnaud, a French national detained “arbitrarily” for a year in Iran, an AFP journalist said. Louis Arnaud, 36, is a passionate traveler who visited Iran in July 2022 as part of his dream to discover the Silk Road. He was arrested on September 28, 2022 in Tehran with friends who were also arrested but were later released.