CAIRO, July 4 (Aswat Masriya) - Police forces sealed off on Friday three main squares in Cairo and Giza in anticipation of planned protests for supporters of deposed President Mohamed Mursi.

In Cairo's Masr al-Gedida suburb, an Aswat Masriya witness said that police forces completely cordoned off the Ittihadeya presidential palace parameters and the Merghani Street.

The National Coalition for Supporting Legitimacy has called on its supporters to rally on what it called a "Friday of Anger" in continuation of Thursday's protests.

The alliance, which supports the deposed president, had previously urged its supporters to stage demonstrations across the country on Thursday.

In a statement it issued, the coalition said that the "July 3rd Uprising" will continue.

Thursday July 3 marked the first anniversary of the ouster of Islamist President Mohamed Mursi following mass protests against his ruling.

Three people were killed in clashes that erupted yesterday between security forces and pro-Brotherhood demonstrators in Cairo and Giza.