At least one was killed on Thursday in clashes between security forces and protesters who support ousted Islamist President Mohamed Morsi in Giza's Agouza neighborhood, state-run Al-Ahram news website reported.
Morsi's loyalists are staging anti-government protests nationwide on Thursday to mark the first anniversary of the security dispersal of two major pro-Morsi sit-ins in Rabaa al- Adawiya Square in Cairo and Nahda Square in Giza, which left at least 1,000 killed and thousands others arrested.
The police arrested tens of the protesters affiliated with the deposed president and his Muslim Brotherhood group in several provinces across Egypt, including the capital Cairo, nearby Giza, Qena, Sharqiya, Alexandria.
New York-based Human Rights Watch organization described in a recent report the disbanding of the two pro-Morsi sit-ins last year as "crimes against humanity" and called for trial of those responsible for it. The controversial report has been condemned by the Egyptian authorities as "biased and negative."
April 6 Youth Movement, which supported Morsi's overthrow and opposed the Brotherhood, has recently described last year's security dispersal of pro-Morsi sit-ins as "a massacre whose perpetrators will be tried sooner or later."
Since Morsi's removal by the military in July last year, extremist groups killed hundreds through terrorist attacks against police and military personnel and premises, which eventually led the new leadership to brand the Brotherhood as "a terrorist organization" although other groups claimed responsibility for the attacks.
Morsi's loyalists have been holding constant anti-government protests, denouncing his removal as "a military coup." Ex-military chief Abdel-Fattah al-Sisi, who led Morsi's ouster following mass protests against the deposed Islamist president, was elected in June as Egypt's new president.