Troops attempt to enforce curfew in Egypt
Troops are on the streets of Egypt's capital tonight as the government struggles to quell widespread rioting. Thousands of people are taking part in the biggest anti-government protests for over 30 years.
At least one person has been killed in clashes with riot police using tear gas and rubber bullets. Soldiers are enforcing a curfew in the country as President Mubarak faces the biggest ever challenge to his authority.
Jon Leyne witnessed a day of protest - and violence.