Egypt crisis: Morsi opponents protest at new constitution

Thousands of demonstrators are on the streets of the Egyptian capital Cairo for rival rallies as emotions run high ahead of a planned referendum.

Islamist President Mohammed Morsi, who called the vote on Saturday to ratify a new constitution, has asked the army to maintain security.

However, hundreds of protesters have breached a barrier outside the presidential palace.

The BBC's George Alagiah spoke to activist Hala Galal as demonstrators continued to climb over the wall.