A mayor from Turkey’s main opposition party and 16 associates were detained Friday in İstanbul as part of a corruption investigation. Silivri District Mayor Bora Balcıoğlu, of the Republican People’s Party (CHP), is among those held by police. The detentions followed simultaneous operations conducted by financial crimes police early in the day. Those arrested include municipal officials and individuals from the business sector. The investigation centers on alleged corruption within the Silivri district municipality. Further details regarding the specific allegations have not yet been released. The case marks a significant development amid heightened political tensions in Turkey.