Army forces were deployed at entrances and exits of Cairo hours before protests begin on Friday.
The National Coalition for Supporting Legitimacy urged people to take part in mass protests on what they called the "Friday of Martyrs".
The Armed Forces intensified their security measures at army checkpoints and at main squares inside Cairo in preparation for a possible outbreak of violence, the state television's website reported.
Some forces were stationed at Abdel Moneim Riad Square and the Egyptian Museum's vicinity to secure Tahrir Square and downtown Cairo.
Police forces were deployed at the Tahrir Square entrance leading to Ramses Street and Abdel Moneim Riad Square.
Army forces closed Gameat al-Dowal Street in Mohandessin with barbed wire in anticipation of planned protests.
They also placed metal barriers on all entrances leading to the street and deployed several tanks in Mostafa Mahmoud Square.
Last Friday, violence flared between security forces and allies of former president Mohamed Mursi after they called for his return.
The health ministry reported tath 173 were killed and 1330 were injured in the clashes.