Five detained in Istanbul suicide bombing

Turkish authorities said they detained four more people Wednesday in connection with a suicide bombing in Istanbul that killed 10 German tourists.

That raises to five the number of arrests stemming from the attack Tuesday, the Associated Press reported, citing Turkish Prime Minister Ahmet Davutoglu. Turkish authorities blamed the Islamic State, also known as ISIL or ISIS.

German Interior Minister Thomas de Maiziere said there were no indications so far that Germans were specifically targeted.

Turkish police also detained nine Islamic State members, including three Russian citizens, in the Antalya and İzmir provinces Wednesday, Hurriyet Daily News reported. Turkish Interior Minister Efkan Ala said 3,318 people in total have been detained as part of the fight against the Islamic State and other radical groups, according to Hurriyet.

The newspaper, citing Turkish security officials it did not name, identified the bomber as Saudi national Nabil Fadli, 28, and said he had applied for asylum in Turkey on Jan. 5.

The blast took place at about 10:15 a.m. local time Tuesday in Sultanahmet Square in Istanbul's Fatih district. The area is home to the historic Blue Mosque, the Topkapi Palace and the Hagia Sophia museum.

In October, two suicide bombs at a peace rally killed more than 100 people in Turkey's capital Ankara. In July, more than 30 people died in a suicide attack near the country's border with Syria. In June, four people were killed and 100 wounded in a blast at a political rally in Diyarbakir. The Islamic State either claimed responsibility or was blamed for all those attacks.

Contributing: Kim Hjelmgaard