Turkish authorities detained 110 people suspected of Islamic State membership in Istanbul during operations across 114 addresses in three municipalities beginning at 1.00am on December 30, state-owned TRT Haber reported.

At least 41 detainees may be linked to terrorists who engaged in a shootout with police in Yalova province in northwest Turkey on December 29, Istanbul prosecutors stated. Three police officers were killed and eight were wounded in that incident, with six extremists killed.

Turkish authorities detained 17 suspected ISIS members in Ankara, including 11 foreigners, according to earlier reports.

Interior Minister Ali Yerlikaya stated on the social media platform X that authorities detained 16 people for spreading "provocative messages" on social networks in connection with the Yalova operation against ISIS.

Turkish intelligence services previously warned of possible ISIS preparations for acts of violence in the country around New Year celebrations.

The large-scale operation represents one of Turkey's most significant counter-terrorism actions in recent months as authorities work to disrupt ISIS networks ahead of holiday celebrations. Turkey has faced periodic ISIS attacks despite conducting extensive operations against the group's cells within Turkish territory.

The Yalova shootout marked one of the deadliest ISIS incidents against Turkish security forces in recent years, prompting immediate nationwide operations to apprehend suspected network members.