The Egyptian army, which late on Friday surrounded the al-Fath mosque in central Cairo, has entered the building to negotiate with supporters of arrested President Mohammed Morsi who took refuge inside.
Eyewitnesses say there may be 1000 people inside, who fled Friday’s violence and who came under siege from supporters of the army, and barricaded themselves in.
Those inside want assurances they will not be set on by the crowds outside, and do not risk arrest or detention before they agree to leave.
On Saturday morning the police arrived to seal off the building and push back the anti-Morsi crowd from the entrance. The mosque is on Ramses square, the scene of the worst violence in the capital on Friday. Many bodies and injured people were already in the mosque before the siege began.