Egypt's riots and political crisis

Egypt's President Mohammed Morsi is facing new challenges to his leadership after several days of protests and rioting in cities across Egypt. Dozens of people have been killed. There are different reasons for the unrest in different parts of the country. How did the latest protests begin? Demonstrations took place in Cairo, Alexandria and other major cities to mark the second anniversary of the 25 January uprising that unseated the former president, Hosni Mubarak. These soon turned into protests against Mr Morsi. Liberals and other opponents of the president accuse the new Islamist leader from the Muslim Brotherhood, who was elected last year, of betraying the revolution. There is widespread disaffection at the manner in which a new constitution was rushed through parliamentary approval and a referendum and with the way Mr Morsi is using presidential powers. In Port Said, at the northern end of the Suez Canal, riots began on Saturday after a court sentenced 21 local people to death for their role in last February's football violence. Over 70 people were killed after a match between al-Masry club playing at home to Cairo's al-Ahly. Relatives of those convicted attacked police and the prison where the men were held. Soldiers were then brought in to guard strategic sites. There were further clashes on Sunday at the funerals for more than 30 people who were killed and the unrest spread to Ismailia and Port Suez. Locals in Port Said argue that the authorities responsible for security at the ill-fated football match have not been brought to justice and that the prosecuted al-Masry fans are scapegoats.