While celebrations took place in Istanbul, commemorations were being held in Turkey's capital Ankara to mark Republic Day.
The foundation of Turkey 90 years ago is an occasion on which people often choose different causes to celebrate.
For many, the wreath-laying ceremony at the memorial to Mustafa Kemal Ataturk was a chance to honour those who have laid their lives down for Turkey.
But for others, it was a day of protest against the ruling AK party and its running of the country. Opposition parties have staged several rallies to demonstrate over government policies.
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