(MENAFN- Arab News)  Turkish Prime Minister Recep Tayyip Erdogan yesterday rejected talk of a "Turkish Spring," facing down the worst protests in his decade-long rule as fresh clashes erupted between police and demonstrators in Ankara. Erdogan defied protesters who accuse him of seeking to impose conservative reforms on secular Turkey, stressing that he was democratically elected. "Was there a multiparty system in the Arab Spring countries?" he said in televised comments. AFP photographers in Ankara later saw police fire tear gas and use water cannon to disperse stone-throwing demonstrators on the fourth day of violent protests that have swept scores of Turkish cities. Rights groups say hundreds have been wounded in clashes nationwide that have pitted stone-throwing protesters against riot police firing tear gas and water cannons since Friday. Erdogan's ally President Abdullah Gul yesterday urged calm and promised protesters that their voice had been heard. "The messages delivered with good intentions have been received," he was quoted as saying quoted by the Anatolia news agency. Erdogan struck a harder tone, vowing: "We will stand firm" against the protests and promising his supporters: "We'll overcome this." With Turkey's allies calling for restraint and international human rights groups denouncing the police crackdown, Gul acknowledged the demonstrators' right to protest but called for an end to the clashes. "Democracy does not only mean elections," he said, adding: "I am calling on all my citizens to abide by the rules and state their objections and views in a peaceful way, as they have already done." "This is a movement which is a result of growing frustration and disappointment among secular segments of society who could not influence politics over the last decade," said Sinan Ulgen, a scholar at the think tank Carnegie Europe.