Switzerland is demanding answers from Iran after a Swiss citizen who was arrested in the country and accused of spying died in prison. The 64-year-old man, who had been traveling in Iran as a tourist, took his own life in prison. The Swiss Department of Foreign Affairs (FDFA) says it had been informed about the arrest by the Islamic Republic. The FDFA is demanding detailed information on the reasons for his arrest and a full investigation into the circumstances of his death. They are also seeking the repatriation of the man's body.