Over the weekend, Cairo's Tahrir Square once again was the home of massive protests against the country's leadership. This time, both secular and Islamist groups gathered in the tens of thousands for a "Friday of One Demand." Together, they called on Egypt's new military rulers to honor their promise to leave power after the fall of former dictator Hosni Mubarak in February. Riot police and military units descended on the square, breaking up encampments, making arrests, brutally beating some, and firing tear gas and rubber bullets into the crowd. (Egyptian doctors are claiming that live ammunition has been found in several bodies.) According to the Ministry of Health, the toll as of this morning includes least 1,500 injured and a minimum of 23 dead. The renewed clashes come just one week before parliamentary elections scheduled for a week from today, a vote that now may be jeopardized. Gathered here are photos from Tahrir Square this weekend, as Egyptians once again took to the streets to be heard and paid dearly in their clashes with security forces.