Posters of presidential candidate Mohamed Morsy are displayed at a makeshift sleeping area used by protesters during a sit-in at Tahrir Square in Cairo June 22, 2012. Thousands of protesters filled Cairo's Tahrir Square overnight as Egypt's rival presidential candidates, Morsy, an Islamist, and former general Ahmed Shafik accused each of trying to steal an election whose result is still not known five days after polling ended [Reuters]