Source: BBC News
Worshippers arriving for mass at St Mary's Church in central Cairo say they were shocked but not surprised by a deadly attack against Coptic Christians in southern Egypt earlier this month.
"Copts have been suffering for a long time," comments Magda accompanying her teenage son to the service.
"There have been a lot of tensions between Christians and Muslims, particularly in Upper Egypt, and a lot of attacks."
"What happened in Naga Hamady has opened the situation up to the outside world."
Six Copts were killed in a drive-by shooting in the busy town, 60 km (37 miles) from Luxor, after they left a late-night mass on 6 January, the eve of the Coptic Orthodox Christmas. A Muslim policeman was also killed.