Turkish authorities have issued a detention order for Özgür Çelik, the Republican People’s Party’s (CHP) chair for Istanbul province, on allegations of ballot tampering during the party’s recent provincial congress. Prosecutors opened an investigation after claims that irregularities affected the outcome of the intra-party vote. Details of the alleged misconduct and the number of ballots in question have not yet been disclosed. CHP officials had not commented publicly on the case at the time of publication.