Egypt's interim president Adly Mansour said presidential elections will be held in the country before a parliamentary vote takes place.
Four soldiers were killed and nine wounded when gunmen attacked a military bus today that was travelling in the Sinai Peninsula, security sources said.
Sinai-based militants have stepped up violence against the state since Islamist President Mohamed Mursi's ouster in July, and the attacks have become more brazen in recent months.
The death toll from protests in Egypt on Saturday has mounted to 49, according to the state-run al-Ahram news website which quoted a health ministry official.
More clashes are expected today at the nation marks the anniversary of the 2011 anniversary that toppled Hosni Mubarak.
Anti-government supporters were involved in clashes with Egypt's army on the third anniversary of the popular uprising of 2011.
Thousands of supporters of Egypt's army chief General Abdel Fattah al-Sissi gathered in Tahrir Square to mark the anniversary.
At least 25 people have been killed in clashes between Egyptian security forces and anti-government protesters said the health ministry, on the third anniversary of Egypt's uprising.
Most of those killed were in Cairo, where fierce clashes erupted between largely Islamist protesters and security forces. At least three people were killed in Alexandria and the southern province of Minya.
Today marks the anniversary of the start of the 2011 uprising that forced long time autocrat Hosni Mubarak to step down.
Rival rallies of those supporting the military-backed government gathered along with supporters of Mubarak's successor, Islamist President Mohammed Morsi, who was removed from office in July following mass protests against him.
Seven people have been killed in Egypt during anti-government marches - three years after the fall of autocrat President Hosni Mubarak.
Security forces used teargas and some fired automatic weapons in the air to try to prevent demonstrators opposed to the government reaching Tahrir Square.
Earlier a car bomb exploded near a police camp in the Egyptian city of Suez, security sources said.
Egyptian riot police have clashed with anti-government protesters on the streets of Cairo.
A witness reported that they fired live rounds into the air to disperse several hundred protesters, as well as tear gas and bird shot.
Footage also showed security forces arresting several men, reported to be supporters of the ousted president Mohamed Morsi.
An explosion was heard near a police building in the Egyptian city of Suez today, according to reports on state TV.
The building was a camp for riot police in the city, which lies at the southern entrance to the Suez Canal.
One security source told Reuters that three attackers had planted a bomb and fled before the explosion.
At least four people have been killed during clashes in Cairo, Reuters reported, citing Egyptian security sources.
The Foreign Office has updated its travel advice in light of recent bombings in Egypt surrounding the third anniversary of the 2011 uprising:
25 January is the 3rd anniversary of the 2011 revolution. A number of groups have called for demonstrations to mark the anniversary.
Protests and disruption to travel around the country are likely in the days before and after 25 January.
You are strongly advised to stay inside during this period in Cairo.
Across the country you are also advised to take particular care in the vicinity of government buildings, and to avoid all demonstrations and large gatherings.