Egypt unrest: Protester says he was 'attacked by soldier'

At least 40 people have been killed in a shooting incident in Cairo, say officials and the Muslim Brotherhood, amid continuing unrest over the removal of President Mohammed Morsi.

The Brotherhood says its members were fired on while they were holding a sit-in at a Presidential Guard barracks.

But the army said a "terrorist group" had tried to storm the barracks.

One protester described how he was "attacked" by a solder.