
As part of the ongoing corruption investigation targeting the Istanbul Metropolitan Municipality (IMM), a 4th wave of operations was carried out on 23 May, 2025. (IHA Photo)
May 23, 2025 09:04 AM GMT+03:00
Turkish authorities detained at least 44 people across six cities Friday in the fourth wave of a corruption investigation targeting Istanbul Metropolitan Municipality (IBB), including close aides to suspended Mayor Ekrem Imamoglu.
The Istanbul Chief Public Prosecutor’s Office issued arrest warrants for 49 suspects as part of an ongoing probe into alleged irregularities at municipal subsidiaries Istanbul Environmental Management Industry and Trade (ISTAC), Istanbul Housing Development Plan Industry and Trade (KIPTAS) and the Road Maintenance Department.

As part of the ongoing corruption investigation targeting the Istanbul Metropolitan Municipality (IMM), a 4th wave of operations was carried out on 23 May, 2025. (IHA Photo)
Key municipal officials detained in dawn raids
Among those detained were Kadriye Kasapoglu, Imamoglu’s special secretary, and Mustafa Akin, his security director. Other high-profile detainees included:
- Deputy Secretary General Gurkan Alpay
- KIPTAS Board Chairman Ali Kurt
- ISTAC Board Chairman Ziya Gokmen Togay
- Head of Muhtarlik Affairs Department Yavuz Saltik
- Ibrahim Bulbullu
- Nezahat Kurt
Istanbul Police Department’s Financial Crimes Unit conducted simultaneous operations in Istanbul, Izmir, Trabzon, Antalya, Tunceli and Kocaeli. Law enforcement officials confirmed 44 of the 49 suspects were apprehended, with efforts ongoing to locate the remaining individuals.

In the corruption investigation targeting the Istanbul Metropolitan Municipality (IMM) 44 suspects — including Ekrem Imamoglu’s Head of Security, Mustafa Akin — have been detained over alleged irregularities in KIPTAS, ISTAC, and the Road Maintenance Department on 23 May, 2025. (AA Photo)
Wide-ranging charges include organized crime and bribery
The investigation encompasses multiple serious charges against the suspects, including:
- Leading a criminal organization
- Criminal organization membership
- Extortion
- Bribery
- Qualified fraud
- Illegally obtaining personal data
- Bid rigging
Imamoglu, who was previously detained, then arrested and subsequently suspended from his mayoral duties, remains under investigation as part of the broader corruption probe.
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