BBC News with Marion Marshall

Tens of thousands of Egyptian anti-government protesters are continuing to occupy Tahrir Square in central Cairo, despite the first substantive talks between the authorities and the opposition. In the negotiations, the Vice President Omar Suleiman offered to set up committees to review and amend the constitution, but opposition figures, instead, proposed immediate confidence-building measures, including a lifting of the national state of emergency. Most of the protesters maintain they won't settle for anything less than the removal of President Hosni Mubarak.