Two were killed and an estimated 100 people were injured Thursday in riots at the interior ministry in Cairo aimed at protesting the lack of security at a soccer match the day before. In Tahrir Square on Thursday, police fired tear gas at the nearly 10,000 protesters gathered to demand retribution for the deaths of 79 people at the Port Said soccer match, which they have alleged was caused by police inaction. Police then opened fire on the crowd. The interior ministry said in a statement that protesters had cut barbed wire and crossed over concrete blocks—eerily reminiscent of the riots in Cairo in November that left more than 40 people dead. The Egyptian government has called for three days of mourning for the deaths at the soccer stadium and has held an emergency session.