French police detain about 20 people in Paris after a demonstration against political repression and executions in Iran proceeds despite an official ban, according to multiple reports. Police disperse the rally as demonstrators gather in central Paris near Place Vauban, close to the Les Invalides area. Authorities had banned the event the previous evening, citing concerns about possible clashes between demonstrators and Iranian regime supporters in a tense national and international context. Demonstrators defy the ban, with several buses arriving at the planned location. Reuters and other outlets report that protesters are arrested after police move in to disperse the crowd, with organizers stating the arrests involved around 20 people. One report also says the ban announcement comes hours after a call between French Foreign Minister Jean-Noël Barrot and Iranian counterpart Abbas Araghchi. Police response details are limited, and police were not immediately available for comment in at least one report. The event is described as an Iran opposition rally focused on opposition to political executions and repression.