Attackers have thrown rocks and glass at a march by Coptic Christians in Cairo, injuring 10, in the latest outbreak of sectarian violence less than two weeks before elections.

About 400 Christians marched through the neighbourhood of Shubra to mark the end of 40 days of mourning after sectarian clashes that killed 27 people, most Christians, witnesses said. During the march, attackers threw stones, bricks and glass from a six-floor apartment building, said marcher Hossam Victor. Clashes broke out and 10 people were hurt.

Mr Victor and other marchers blamed supporters of Gamal Saber, an ultra-conservative Islamist candidate in Egypt’s elections, set to begin on November 28. ”They rained rocks and glass down on us from the building, and the police stood by and watched without doing anything,” Mr Victor said.