Jailed former Istanbul Mayor Ekrem Imamoğlu appeared in court Monday in three separate criminal proceedings, as one of the cases involving allegations over his university diploma was postponed until Dec. 25.

The Istanbul 59th Criminal Court of First Instance ruled to delay the diploma case pending the finalization of a separate administrative court decision concerning the validity of Imamoğlu's degree.

The case stems from allegations that Imamoğlu fraudulently obtained a bachelor's degree from Istanbul University's Faculty of Business Administration in 1994. Prosecutors launched an investigation earlier this year after complaints were filed over the authenticity of his diploma.

In March 2025, Istanbul University annulled the diplomas of Imamoğlu and 27 others, citing what it described as legal nullity and procedural errors. Prosecutors later charged him with forgery of an official document.

In a separate espionage case heard the same day, prosecutors requested that Imamoğlu remain in pretrial detention alongside co-defendants, including journalist Merdan Yanardağ, political consultant Necati Özkan and businessperson Hüseyin Gün.