The Egyptian president Mohammed Mursi has declared a state of emergency in three major cities close to the Suez Canal.

The announcement follows days of violence and rioting in the cities of Port Said, Suez and Ismalia. At least 33 people have been killed in protests in Port Said, after a court sentenced 21 people to death for their role in last year’s riots at the Port Said football stadium.

A daily curfew has been imposed on the cities for 30 days.

There were further protests across Egypt against Morsi’s government. In Cairo, there have been four days of clashes between protesters and security forces near Tahrir Square.

A total of 74 people died in Port Said stadium on 2 February 2012 after fights broke out between rival football clubs Al-Masry and Al-Ahly.