Turkish police officers stand guard as they block the Istiklal avenue in Taksim, a district of Istanbul during a May Day rally on May 1, 2016 in Istanbul. Turkish labour activists and leftists marked the annual May Day holiday, with thousands of security deployed and bracing for trouble after the authorities refused to allow protests in central Taksim Square. / AFP / OZAN
{"Image ImageDescription": "Turkish police officers stand guard as they block the Istiklal avenue in Taksim, a district of Istanbul during a May Day rally on May 1, 2016 in Istanbul.\nTurkish labour activists and leftists marked the annual May Day holiday, with thousands of security deployed and bracing for trouble after the authorities refused to allow protests in central Taksim Square. / AFP / OZAN KOSE        (Photo credit should read OZAN KOSE/AFP via Getty Images)"}