Labour Day in Istanbul — May 1, 2014

1. Protesters wearing gas masks hold a banner reading ‘Workers who resist win’ as they march towards Taksim Square. (Bulent Kilic/AFP/Getty Images)

2. A riot police officer gestures amidst tear gas during a May Day demonstration in Istanbul. (Murad Sezer/Reuters)

3. Protesters advance towards riot police. (Can Erok/Reuters)

4. Turkish riot policemen take position behind their shields during clashes with protesters who try to reach Taksim Square in Istanbul. (Ozan Kose/AFP/Getty Images)

5. Protesters wearing gas masks use slingshots during clashes with riot police who prevent them from reaching Taksim Square. (Bulent Kilic/AFP/Getty Images)

6. Riot police fires tear gas to push back protesters. (Murad Sezer/Reuters)

7. A Turkish protester wearing a gas mask stands amid a fog of tear gas that was fired by riot police to disperse a May Day rally. (Bulent Kilic/AFP/Getty Images)

8. A protester is hit by water from a police water cannon during a May Day demonstration. (Murad Sezer/Reuters)