A blast ripped through Istanbul's Istiklal Street on Saturday.
Witnesses on the scene said the explosion was very fierce.
Local officials confirmed it was a suicide bombing attack, noting that the attacker is among the dead.
Turkey's Health Ministry said 5 people died and 36 were wounded in the attack, among them 12 foreigners.
The police have cordoned off and evacuated the entire street, and all shops were closed.
