Police discovered the finger tip of the suicide bomber who perpetrated the attack in Istanbul’s Sultanahmet Square on Tuesday. 

Security forces identified the bomber based on the finger print as 28-year-old Nabil Fadli, a Saudi national who recently appealed to a to a district directorate of migration management to seek asylum in Turkey. He was not on any known wanted list, or list of suspicious persons.

Fadli applied to the Zeytinburnu Migration Management Directorate in the Istanbul district on Jan. 5. According to reports that appeared in the Turkish media, the man arrived at the migration center together with four other men. He then remained at his declared address for a few days, before carrying out the attack. 

Police are still conducting extensive searches in the area around the attack, as well as the address where Fadli was staying, for Fadli’s accomplices and the men who came to magistrate’s office with him.