A policeman sits by the scene of the hunger strike started by Raffi Hovhannisyan, Armenian opposition leader and Heritage Party chief, in Yerevan, capital of Armenia, on March 12, 2013. Raffi Hovhannisyan continued his hunger strike, which began on Sunday and called on President Serzh Sarksyan to resign. The Constitutional Court of Armenia on Monday started hearing the case of Raffi Hovhannisyan who claimed widespread fraud in the presidential election last month. [Photo: Xinhua]

Raffi Hovhannisyan, Armenian opposition leader and Heritage Party chief, delivers a speech during a hunger strike in Yerevan, capital of Armenia, on March 12, 2013. Raffi Hovhannisyan continued his hunger strike, which began on Sunday and called on President Serzh Sarksyan to resign. The Constitutional Court of Armenia on Monday started hearing the case of Raffi Hovhannisyan who claimed widespread fraud in the presidential election last month. [Photo: Xinhua]