26 January 2011
Last updated at 07:38
Anti-government protesters took to the streets in Egypt after an internet campaign inspired by the uprising in Tunisia.
Thousands of people marched through the centre of the capital, Cairo.
There were also protests in other parts of Egypt, including Alexandria. The demonstrators demanded the end of President Hosni Mubarak's 30 year-rule.
Riot police in the Cairo used batons, tear gas and water cannon.
There were casualties as protesters clashed with riot police in several cities.
Three people were killed - two demonstrators in Suez and a policeman in Cairo.
Such demonstrations are uncommon in Egypt. But the protesters vowed to camp in central Cairo overnight, setting the stage for further confrontation.
The demonstrations - the so-called "day of revolt" - were co-ordinated on a Facebook page, with the organisers saying they were protesting against torture, poverty, corruption and unemployment.
The government blamed the protests on the banned Islamist movement the Muslim Brotherhood.
The demonstrations come amid questions about whether Mr Mubarak will run again in elections due in September, or perhaps position his son to run for president.
The unrest first stirred in Egypt last week when several people set themselves on fire, or attempted to do so, outside parliament and the prime minister's office.