Egypt riots work of the devil, says Egypt's speaker

Three days of national mourning have been declared in Egypt after riots in the city of Port Said which left at least 74 people dead.

Football fans invaded the pitch after a match involving top Cairo club al-Ahly. Emergency meetings of the cabinet and parliament are taking place.

Parliament opened with a minute's silence. Speaker Mohamed Saad al-Katatni said the riots were the work of the devil and that Egypt's revolution was in danger.