Dozens of Copts on Wednesday continued their sit-in at the Egyptian state television building for the fourth day despite a cleric's call to end the demonstration.
Coptic Bishop Moussa asked protesters to end their sit-in and accused the counter-revolution of inciting the strife.
The demonstrators are protesting for speedy trials of Imbaba violence suspects, among other demands. A number of Muslims are also taking part in the protest.
At least 12 Egyptians were killed and 240 injured in sectarian clashes between Muslims and Christians Saturday over a woman who allegedly converted to Islam and was believed to be held at one of the churches there.
The woman, Abeer Fakhry, turned herself into military authorities Tuesday in Edmas village, Monufiya, where she apparently was staying with a Muslim family after leaving Cairo.
Sources said Fakhry would be interrogated as part of a military trial for the suspects.
