Turkish authorities have taken several people into custody in connection with the Istanbul airport bombing.
According to several outlets, officials say at least 13 people were detained during raids and that another nine suspects were arrested on suspicion of communicating with Syrian ISIS members and providing support to the group.
Turkish police and special operations forces reportedly conducted the raids in several neighborhoods of Istanbul and Izmir, a western city on the Aegean coast.
ISIS hasn't claimed responsibility for Tuesday's attack, which killed at least 42 people and wounded hundreds more at Istanbul's international airport.
But Turkey's prime minister said Wednesday the idea of the terrorist group being behind the attack is becoming increasingly probable.