A newly formed militant group has claimed responsibility for an attack on a police checkpoint in Cairo's twin city of Giza that wounded six people.
At least 17 people have been killed during clashes between supporters of the Muslim Brotherhood and police in Egypt.
Morsi accuses defence minister of betraying Egypt, saying there will be no peace until he is reinstated.
Students backing Egypt's ousted Islamist president Mohammed Morsi have stormed the administrative offices of a state-run university in Cairo.
The security apparatus has survived Mohamed Morsi, and is more powerful – and aggressive – than ever.
The Egyptian state seems unwilling to rein in its onslaught and the Muslim Brotherhood is unlikely to curtail its street presence.
Egypt's Interior Minister vowed to investigate the beating of a naked man by police that threatened to further inflame anger against security forces.
Egypt's electoral commission has confirmed that a new Constitution was passed by 64% of voters, rejecting opposition allegations of polling fraud.
The majority of Egyptians who cast their ballots in a referendum have backed the country's draft constitution, according to unofficial results.
Egypt has announced that a ceasefire had been reached to end the conflict between Israel and the Palestinians, starting later in the day.
Egypt's President Mohammed Morsi has pardoned those charged or convicted of acts "in support of the revolution" since the beginning of the uprising.
Egypt's President Mohammed Morsi has given himself high grades, spending much of a nearly two-hour speech talking about fuel, trash and bread.
Egypt's President Mohammed Morsi has assigned himself the heavyweight role in the Middle East, saying civil war in Syria is the "tragedy of the age".
Newly elected president Mohamed Morsi has shown his support for Palestinians in Syria, saying Egypt will support them until they regain their rights.