CAIRO, Aug. 14 (Xinhua) -- At least seven people, including a police officer, were killed on Thursday in clashes between security forces and protesters supporting ousted Islamist President Mohamed Morsi across Egypt, state-run Ahram news website reported.
Morsi's loyalists have been staging anti-government protests nationwide 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 people killed and thousands others arrested.
In Giza, two people were killed during clashes between police and protesters in Agouza neighborhood and two others were shot dead at a workshop in Ard al-Liwaa; in Cairo, one was shot dead during similar clashes in Dar al-Salam district and another was killed in Matariya.
On the other hand, a police statement said a police officer was killed and another injured during clashes with pro-Morsi protesters, adding that the security forces managed to arrest 114 protesters affiliated with the deposed president and his Muslim Brotherhood group in several provinces across the country.
"Bomb disposal teams managed to defuse 23 homemade explosive devices left behind by Brotherhood elements in the provinces of Cairo, Giza, Qalyoubiya, Daqahliya, Sharqiya, Gharbiya and Beni Sweif," the police statement added.
The Interior Ministry intensified security deployment at public squares, including Tahrir Square downtown in Cairo and main roads and streets throughout the country, blocking some of them with metal barriers for security reasons.
During their protests, Morsi's supporters blocked traffic in Otostard main street in Maadi district, southern Cairo, the Nile Corniche Street in Helwan, as well as the Cairo-Ismailia and Cairo- Fayoum highways, causing traffic congestion in all of them.
The protesters raised anti-government signs and the yellow Rabiaa symbol, referring to the deaths in Rabiaa al-Adwiya Square, and shouted statements against the police and military for the massive crackdown and the removal of Morsi.
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.
The Muslim Brotherhood has been blacklisted by Egyptian authorities as a terrorist group last February, and its members were also banned by a court ruling in April from running for presidential and parliamentary elections.
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.