Reports say at least five people have been killed in Egypt as supporters of deposed President Mohamed Morsi took to the streets to demand the end of army-backed rule.
Fighting erupted in Cairo, in Alexandria and in other cities.
This was the most ambitious challenge to security forces by the Muslim Brotherhood since August 14 when authorities smashed two pro-Morsi sit-ins in the capital and then imposed a state of emergency and imposed a curfew.
Witnesses said an army vehicle in Cairo fired live rounds in the direction of the Islamists who had been pushed away from Tahrir Square by security forces.
Egypt has been gripped by turmoil since the military overthrow in July of Morsi -Egypt’s first freely-elected president – following mass protests against his rule.