There have been 26 deaths following attacks on Coptic Christian churches in Egypt recently.  Most of the deaths have been Christians.

Associated Press vis Seattle Times

The spiritual leader of the Coptic Christian minority, Pope Shenouda III, declared three days of mourning, praying and fasting for the victims starting on Tuesday and also presided over funerals for some of the Christians killed. Sunday's sectarian violence was the worst in Egypt since the uprising that ousted Hosni Mubarak in February. 

"Strangers got in the middle of our sons and committed mistakes to be blamed on our sons," the Coptic church said in a statement. It lamented "problems that occur repeatedly and go unpunished." 

The clashes Sunday night raged over a large section of downtown Cairo and drew in Christians, Muslims and security forces. They began when about 1,000 Christian protesters tried to stage a peaceful sit-in outside the state television building along the Nile in downtown Cairo. The protesters said they were attacked by "thugs" with sticks and the violence then spiraled out of control after a speeding military vehicle jumped up onto a sidewalk and rammed into some of the Christians.