Paramedic attend to an injured man during clashes between Catalan Mossos d'Esquadra regional police and pro-independence supporters trying to reach the Spanish government office in Barcelona, Spain, Sunday, March 25, 2018. Grassroots groups both for and against Catalan secession called for protests Sunday in Barcelona after Carles Puigdemont, the fugitive ex-leader of Catalonia and ardent separatist, was arrested Sunday by German police on an international warrant. (AP Photo/Emilio_Morenatti)