ISTANBUL (AP) — Coffins with the remains of 10 German tourists killed in a suicide bomb attack in Istanbul have been flown to Germany.

Police escorted the convoy of 10 funeral vehicles from a forensic institute morgue to Istanbul's Ataturk airport on Saturday. They were put on a German air force plane, which landed a few hours later at the Tegel airport in Berlin.

The suicide bomber set off the explosion near German tourists visiting the city's landmark Blue Mosque on Tuesday, killing 10 of them. Authorities said the victims ranged in age from 51 to 75.

Turkish officials say the bomber, a Syrian, was affiliated with the Islamic State group but no organization has claimed the attack.

Turkish authorities have detained seven people in connection with the Istanbul attack.