The Turkish police on Sunday detained at least 34 Islamic State (IS) suspects in counter-terrorism operations across the city.
The suspects were reportedly planning to carry out attacks and had previously fought for the militant group, reports Xinhua news agency
Digital material and documents linked to the group were also seized in the operations.
The detainees will be deported following due procedures.
A total of 82 foreigners were captured in Istanbul as IS suspects on Friday.
On Thursday, 101 IS suspects were arrested in Turkey’s capital Ankara following warrants issued for 245 people.
Between October 22 and November 1, the police has launched anti-IS operations in 25 provinces across Turkey detaining 283 IS militants and seizing 66 improvised explosive devices.
Since 2015, Turkey has suffered several deadly attacks that killed more than 300 people.
According to the Turkish Justice Ministry, at least 780 people, including 350 foreigners, remain in detention, some of whom have been convicted, for suspected links to the IS group.