Tens of thousands of Turkish opposition protesters rallied outside Istanbul City Hall in support of Mayor Ekrem Imamoglu, who was arrested on corruption charges. The protests, which led to clashes with police, were the largest in over a decade, raising concerns about democracy in Turkey. President Erdogan condemned the protests and warned of accountability for opposition leaders. Several journalists were also detained amid the unrest. Teljes cikk (Euronews.com)