Protesters continued their sit-in in Tahrir Square for the third consecutive day on Monday to call for swifter action against police officers and former officials accused of killing protesters and squandering public money.
The protesters said they were frustrated by Prime Minister Essam Sharaf's address following a mass rally in Tahrir on Friday. Revolution youth groups have called for another mass rally on Tuesday.
The protesters blocked the entrance to the Mugamma, preventing employees from going to their offices. Some Mugamma employees joined the protesters on Sunday to call for reform of the Interior Ministry, which they say still controls many of the documents they need for their work.
Other protesters threatened to close the square's metro station and block entry to the ministerial cabinet headquarters and the Egyptian state TV building.
Mamdouh Hamza, an architectural expert and political activist, said the ruling Supreme Council of the Armed Forces (SCAF) has been a passive bystander since former president Hosni Mubarak stepped down on 11 February.
Abul Ezz al-Hariry, a member of the Popular Socialist Coalition Party, said the SCAF's ties with the former regime prevent it from bringing its members to justice.