On December 30, local time, Turkey's Istanbul Public Prosecution Service announced that since the early morning of the same day, the Turkish security department has carried out a special crackdown against the extremist group “Islamic State” in the city, and a total of 110 suspects have been arrested. The Istanbul prosecution said that some intelligence indicates that some of the suspects may be planning to launch an attack during New Year's Day. The prosecution also said that among those arrested, more than 40 were suspected of being linked to the exchange of fire that occurred the day before in Yalova province in northwestern Turkey. At 2 a.m. on the 29th, during an operation against extremist groups carried out by Turkish security forces in Yalova province, an exchange of fire broke out with members of the extremist group. As a result, 6 members of the extremist group were killed and 3 Turkish police officers died in the line of duty.

On December 30, local time, Turkey's Istanbul Public Prosecution Service announced that since the early morning of the same day, the Turkish security department has carried out a special crackdown against the extremist group “Islamic State” in the city, and a total of 110 suspects have been arrested. The Istanbul prosecution said that some intelligence indicates that some of the suspects may be planning to launch an attack during New Year's Day. The prosecution also said that among those arrested, more than 40 were suspected of being linked to the exchange of fire that occurred the day before in Yalova province in northwestern Turkey. At 2 a.m. on the 29th, during an operation against extremist groups carried out by Turkish security forces in Yalova province, an exchange of fire broke out with members of the extremist group. As a result, 6 members of the extremist group were killed and 3 Turkish police officers died in the line of duty.