Hundreds of thousands of anti-government supporters have gathered in central Cairo for what the organisers are calling a Friday of Departure.
It is the eleventh day of demonstrations and those calling for the immediate departure of President Hosni Mubarak are hoping for one million people to come out and support them.
Friday had been the deadline given by opposition leaders for the president to step down. However Mubarak said in an interview on television on Thursday that while he would like to go, he cannot, because, he said, if he steps now there would be chaos.
The UN estimates more than 300 people have died since the unrest erupted 10 days ago, while at least 800 have been injured.