The chief of the Istanbul Police Department's Intelligence Unit Hasan Ali Sekkin was removed from his post on Sunday following the failed coup attempt on July 15.
Sekkin was replaced by Istanbul Police Chief Mustafa Çalışkan's executive assistant Özgür Taşdemir.
Taşdemir started working in the police department following the Dec. 17 and 25 coup attempts and conducted critical operations on cracking down the Gülenist Terror Organization (FETÖ) members within state institutions.
On July 15, a military junta linked to FETÖ attempted to topple the democratically elected government in Turkey and put martial law in effect.
The attempt was prevented by millions of Turkish people who showed up in support of democracy, as well as by military and police units loyal to the government.
A total of 264 people, mostly civilians, were killed and over 2,000 people were injured. Opposition parties have united in condemning the coup attempt, denouncing the plot in the harshest terms and underscoring their determination to preserve democracy and the rule of law in Turkey.