World Bulletin / News Desk
In raids across the city, counter-terrorist units apprehended at least 12 of the wanted suspects, said the source, who asked not to be named due to restrictions on speaking to the media.
The source said the arrested suspects, who were foreigners, were allegedly recruiting members for the terror group and were in contact with conflict zones.
Police are seeking the remaining suspects, the source added.
More than 300 people have lost their lives in ISIL-claimed attacks in Turkey, where the terror group has targeted civilians in suicide bomb, rocket, and gun attacks.
Turkish security forces have been involved in a long-running campaign to thwart ISIL attacks.