Egypt: Rabaa al-Adawia mosque 'epicentre of crisis'
27 July 2013 Last updated at 22:14 BST
Egypt's interior minister has warned supporters of ousted president Mohammed Morsi that they will "soon" be dispersed from a sit-in in Cairo.
Minister Mohammed Ibrahim said lawsuits filed by residents near a mosque provide legal cover for the clearance.
But thousands of protesters insist they will stay at Rabaa al-Adawia mosque.
The BBC's Jim Muir said: "It's hard to see how this area, with these very determined and stubborn people, can be cleared without further bloodshed."