11 December 2012 Last updated at 23:04 GMT Help
Thousands of demonstrators in the Egyptian capital Cairo have joined rival rallies as emotions run high ahead of a controversial referendum on Saturday.
Earlier today, government's opponents breached a barrier outside the presidential palace but there was no violence.
Islamist President Mohammed Morsi, who called the vote on Saturday to ratify a new constitution, has called on the army to maintain security.
Our Middle East correspondent Wyre Davies reports.
11 December 2012 Last updated at 21:52 GMT Help Thousands of demonstrators have taken to the streets of the Egyptian capital Cairo for rival rallies as emotions run high ahead of a planned referendum.
The opposition breached a barrier outside the presidential palace and continued their protest into the night.
The BBC's Shaimaa Khalil visited the scene and said it felt like "a new Tahrir Square".
