— Amichai Stein (@AmichaiStein1) January 13, 2016
ISTANBUL—The Islamic State suicide bomber who killed 10 German tourists in the heart of Istanbul entered the country as a Syrian refugee without setting off security alerts, Turkish officials said Wednesday, highlighting concerns that extremists are using the migrant crisis to slip into vulnerable nations to carry out terrorist attacks.
Turkish officials identified the bomber as Nabil Fadli, a Syrian national born in Saudi Arabia in 1988, who was fingerprinted in Turkey last week while registering as a refugee with immigration officials.
Investigators matched Mr. Fadli’s fingerprints to those found at the blast site on Tuesday where 10 German tourists were killed and at least 11 other people were wounded. The German tour group had gathered in a square near Istanbul’s picturesque Blue Mosque for a day of sightseeing when the suicide bomber approached them and detonated his explosives.