Update: Hundreds remember Friday of Anger on Qasr al-Nil Bridge, sit in at Maspero

Despite it being the first anniversary of the most violent day of Egypt's revolution, the numbers in Tahrir Square were not so large on Saturday, mainly because the violence was commemorated on Friday, when tens of thousands marched towards Tahrir.

A sit-in at nearby Maspero continued, and on Saturday afternoon over 2000 protesters were still there.

Another development at Maspero was an open-ended sit-in of ambulance drivers and workers, who were objecting to the authorities' refusal to offer them permanent contracts. Over 30 ambulances from Cairo, Giza and Daqahliya were parked opposite Maspero.

Mohamed Khamis, an ambulance driver, said they came to Maspero because it is the state TV building and they hope they will no longer be ignored.

"We want permanent contracts, I've been working on a temporary basis for three and a half years," he said. He placed the blame squarely on the head of the ambulance authority, Mohamed Sultan, who according to Khamis has called objecting ambulance workers "thugs."

Earlier in the day:

Hundreds of protesters gathered on Saturday on Qasr al-Nil Bridge to commemorate those who were killed by security forces on 28 January — the Friday of Anger — last year.

Protesters performed the afternoon prayers and then Salat al-Gha'eb, the prayer for the absent, for the martyrs.

They blocked Qasr al-Nil Bridge and prevented traffic passing during prayers.

Following prayers, protesters chanted "Down with the military rule," and "The people want the rights of the martyrs." They demanded fair punishments for those implicated in killing protesters.

On 28 January 2011 dozens of protesters were killed on Qasr al-Nil Bridge when tens of thousands tried to enter Tahrir Square and thousands of police and security officers tried to prevent them by using live ammunition, tear gas and water cannons. After a long struggle the security forces fled and protesters managed to cross the bridge and enter the square.

With clashes taking place nationwide between pro-democracy protesters and security forces, it was the bloodiest day of the uprising that began on 25 January and ousted Hosni Mubarak on 11 February.

A number of protesters who have been staging a sit-in since yesterday in Tahrir Square marched around the square on a regular basis to avoid causing traffic jams. They demanded that the ruling Supreme Council of the Armed Forces hand over power to a civilian authority.