The latest round of unrest in Turkey has prompted two union federations to announce a nation-wide strike on Monday.

Union leaders said Sunday the strike is to protest the forced eviction of demonstrators from Gezi Park in Istanbul. Other groups representing doctors, engineers and dentists are also expected to participate in the strike.

Overnight Sunday more clashes between riot police and demonstrators, near the U.S. Embassy in Ankara. Police used water cannons and tear gas to drive back the crowds.

Now nearly three weeks old, the unrest over plans to develop a city park in Istanbul into a shopping mall has divided the country and drawn international attention.

Prime Minister Tayyip Erodan has dismissed suggestions that he's behaving like a dictator and says the movement is being fueled by quote terrorists.