A suicide bomb in Istanbul has killed at least four people, in the latest violence in Turkey's largest city.
According to Turkish media, the attack in a shopping district killed three Israelis and one Iranian citizen.
Recent bombing have been claimed by both Kurdish militants and Islamic State. Turkey has stepped up their bombing campaign against the PKK and the YPG in recent months, in light of the latter group's advances in Syria.
Turkey is also part of the US-led coalition fighting ISIS, and allows the coalition to use its air bases.
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