ISTANBUL, Sept. 13 (Xinhua) -- Turkish authorities have ordered the detention of 48 suspects, including Hasan Mutlu, mayor of Istanbul's opposition-run Bayrampasa district, in a major corruption investigation into the district, state broadcaster TRT Haber reported Saturday.

The Istanbul Chief Public Prosecutor's Office launched an operation Saturday morning as part of the investigation. The office said evidence of embezzlement, extortion, bribery, and bid rigging involving public officials had been uncovered at Bayrampasa.

In the morning raids, financial crimes units detained 37 suspects, including Mayor Hasan Mutlu, a member of the opposition Republican People's Party (CHP), Deputy Mayors Atilla Ozen, Hakan Bas, Lutfi Kad?ogullar?, Gunduz Kalkan, and Legal Affairs Director Bilgehan Yagc?. Seven additional suspects were later apprehended, while police continue to search for the remaining wanted individuals.

The arrests come amid a nearly year-long series of investigations into CHP-run municipalities across Türkiye, in which hundreds of people have been taken into custody. ■