Stones thrown during clashes between soldiers and protesters in Cairo are placed in a heart-shape around blood stains, in memory of protesters killed during the latest clashes. Thirteen people have been killed in the violence since Friday with hundreds suffering injuries. Over 100 demonstrators have been arrested. The most recent clashes come just days after Egyptians voted in the latest round of parliamentary elections. Protests against ongoing military rule in the country have been ongoing since mid-November and have become increasingly violent since then. Forty-two people were killed in street battles in November. Both United Nations Secretary General Ban Ki-moon and US Secretary of State Hillary Clinton have expressed concern at the latest flare-up.