Simmering anger in Cairo has spilled over onto the streets of the Egyptian capital. The authorities say more than a thousand people have been hurt in two days of protests in and around Tahrir Square.
Riot police fired in the air and used tear gas to disperse hundreds of youths who pelted them with rocks and firebombs.
Egypt’s Health Ministry says more than a thousand people were hurt, including 40 police officers.
Tempers flared among relatives who gathered to remember those who died in the uprisings earlier this year.
Fighting broke out and gravitated to Tahrir Square and the Interior Ministry, the focus for the unrest which led to the ousting of President Hosni Mubarak.
Some say the military authorities running the country should speed up the prosecution of police officers accused of killing protesters earlier this year.