Sixteen Egyptians were killed in clashes around the country as the people went to the streets to protest against the Government on the fourth anniversary of the uprising that led to the removal of President Hosni Mubarak.
In all, 50 people were injured, the Health Ministry said. However, the streets of Cairo itself remained mostly empty. Police were deployed at flashpoints and sealed off access to Tahrir Square, the epicentre of the 18-day uprising in 2011.
The protests around the country were the biggest since Abdel-fattah al-Sisi was elected in June. Nonetheless they remained small compared to previous protests against Mubarak and President Mohammed Morsi.
Activists have stayed off the streets of Cairo in the wake of Sisi's security crackdown and due to political apathy.
Sisi ousted the elected Islamist Morsi in July 2013 after mass protests against his rule.