Anti-government protests escalate in Turkey

May 31, 2013: A man falls as riot police use tear gas and pressurized water to quash a peaceful demonstration by hundreds of people staging a sit-in protest to try and prevent the demolition of trees at an Istanbul park, Turkey. (AP)

June 1, 2013: Turkish youths shout slogan "Tayyip, resign!" as they clash with security forces in Ankara, Turkey. Turkish police retreated from a main Istanbul square Saturday, removing barricades and allowing in thousands of protesters in a move to calm tensions after furious anti-government protests turned the city center into a battlefield. (AP)

May 31, 2013: A man reacts as riot police use tear gas and pressurized water to quash a peaceful demonstration by hundreds of people staging a sit-in protest to try and prevent the demolition of trees at an Istanbul park, Turkey. (AP)

May 31, 2013: A man helps an injured woman as riot police use tear gas and pressurized water to disperse protesters staging a sit-in protest to try and prevent the demolition of trees at an Istanbul park, Turkey. (AP)

June 1, 2013. Riot police on the scene where demonstrators were staging a sit-in to prevent the uprooting of trees at an Istanbul park, in Ankara, Turkey,. Turkey's government on Saturday appeared to be trying to placate demonstrators on the second day of anti-government demonstrations, even as police let off more tear gas and pressurized water against protesters trying to reach a main square in Istanbul or the Parliament building in the capital, Ankara. (AP)

May 31, 2013: People hold up banners that read "Chemical Tayyip, Go!" and "Resist the Dictator" as thousands of people gather in support of demonstrators staging a sit-in to prevent the uprooting of trees at an Istanbul park, in Ankara, Turkey. Riot police clash with demonstrators after they used tear gas and pressurized water in a dawn raid on Friday to rout a peaceful demonstration by thousands of people in Istanbul. (AP)

June 1, 2013: Turkish youths shout slogan "Tayyip, resign!" next to a burning make-shift barricade as they clash with security forces in Ankara. (AP)