Supporters of Egypt's Muslim Brotherhood and the nation's ousted president are protesting across the country against the military-backed government.
Thousands of protesters flowed out of mosques after prayers in the cities of Ismailiya, Suez, Assiut, Alexandria and the capital Cairo, among others.
The protesters chanted "down with military rule" and waved Egyptian flags. Others held up pictures of toppled president Mohammed Morsi, who was ousted by the military in a July 3 coup after mass protests against him.
The Brotherhood called the protests for "the people to protect the revolution", in reference to the uprising that ousted long-time autocratic ruler Hosni Mubarak in early 2011.
Protests have been smaller in recent weeks following bloodshed in mid-August that killed more than 1,000 people, most of them Morsi supporters.