Street battles raged throughout Wednesday night as Egyptian riot police fired tear gas at protesters.
After almost a week of clashes calling for the military to pull out of politics and turn power over to civilians there seems no let up between the security forces and hardcore young activists.
The unrest has always been in Cairo and latterly Alexandria but now it has spread to Ismailia.
In the Suez Canal city tanks patrolled the streets.
There are growing doubts that Monday’s elections will go ahead against the backdrop of the violence – for many Egyptians that is a disaster as they want the unrest to end.
Since Saturday nearly 40 people have been killed, mainly in the capital. Undeterred, tens of thousands are remaining on the streets having rejected the army’s offer of a referendum on its rule.