The family and friends of Lennart Monterlos (pictured), a 19-year-old German-French dual national detained in Iran in June, are seeking information about his whereabouts and the reasons for his arrest.

The family have not received any official information about the detention. They said they are relying on French diplomacy to secure the swift release of Monterlos, and are in ongoing contact with the German Foreign Ministry.

Monterlos disappeared on June 16 during a cycling trip around the world. After posts circulated on July 6 in an effort to locate him, a French diplomatic source called the incident “alarming”.

Relatives called on authorities to recognize the cyclist’s legal rights, including access to an independent Iranian lawyer and visits by consular personnel.

Foreign Minister Abbas Araqchi told the French newspaper Le Monde on July 12 that a foreign national was arrested for “committing a crime” but did not specify the allegation. He said the French chargé d’affaires in Tehran has met with Monterlos and proceedings would continue “in accordance with the law”.

Iran’s Revolutionary Guards have seized a series of foreign nationals for political leverage. Among them are French nationals Cécile Kohler and Jacques Paris, detained in May 2022.

Kohler and Paris were moved out of Tehran’s Evin Prison last month after Israel’s deadly bombing of the facility.