Egyptians have started voting on a draft for their country's new constitution that represents a key milestone in a military-backed roadmap put in place after President Mohammed Morsi was overthrown in a popularly backed coup last July.
The two-day balloting, which began Tuesday, is a heavy blow to the Muslim Brotherhood's campaign for the reinstatement of Morsi and paves the way for a presidential run by the nation's top general.
A massive security operation is underway to protect polling stations and voters against possible attacks by militants loyal to Morsi.
Shortly before polls opened, an explosive device went off outside a Cairo courthouse. The blast damaged the front of the building but caused no casualties. (AP)