An Egyptian flag is waved as thousands of Egyptian Copts attend a Mass in the Cave Cathedral, or St Sama'ans, in the Manshiet Nasser district of Cairo on Dec. 13, 2012, where they prayed for Egypt ahead of the disputed referendum on the new draft constitution slated for Saturday.

Egyptian Copts attend a Mass in the Cave Cathedral or St Sama'ans in Cairo on Dec. 13.

An Egyptian man prays as thousands of Egyptian Copts attend a Mass in the Cave Cathedral in Cairo on Dec. 13

Coptics participate in a mass at the Cave Cathedral or St . Sama'ans Church in the Moqattam area, Cairo, Egypt, on Nov. 8. Egypt's Christian minority, about 10 percent of the population of more than 80 million, has long complained of discrimination. But Christians fear things are reaching a crisis point since the ouster of President Hosni Mubarak nearly two years ago and the subsequent rise to power of Islamists. The Church itself is undergoing a major transition: A new pope, Tawadros II, is to be enthroned in Cairo on Sunday, succeeding Shenouda III, the man who led the Church for 40 years and was revered by Copts as their protector until his death in March. (AP Photo/Bernat Armangue)

A Coptic woman shops for vegetables in the Moqattam area, Cairo, Egypt, on Nov. 11.

A Coptic pilgrim prays during a ceremony at Mar Girgis Monastery, near Luxor, Egypt.

A Coptic pilgrim holds a candle during a ceremony at Mar Girgis Monastery, near Luxor, Egypt, on Nov. 12.

A woman who believes she is possessed by the devil, reacts while waiting to be exorcised by Coptic priest father Makari, not pictured, during an evening mass in a church in Cairo, Egypt, on Nov. 9.

A young Coptic young girl pilgrim gets a tattoo during a ceremony at Mar Girgis Monastery, near Luxor, Egypt, on Nov. 13.

Coptics participate in a mass at the Cave Cathedral or St. Sama'ans Church in the Moqattam area, Cairo, Egypt.

A Coptic vendor waits for customers near Mar Girgis Monastery, near Luxor, Egypt, on Nov. 12.

Young boys wait anxiously to hear which one of them will be selected to choose the new pope of Egypt's ancient Coptic Christian church, in Cairo on Nov. 3, 2012.

A blindfolded boy draws the name of the next pope from a crystal chalice next to acting Coptic Pope Pachomios, center, during the papal election ceremony at the Coptic Cathedral in Cairo on Nov. 4, 2012.

Egyptian Copts crowded into the cathedral for the papal election ceremony on Nov. 4, 2012.

Acting Pope Pachomios, center, displays the name of 60-year-old Bishop Tawadros, soon to be Pope Tawadros II, while another clergyman displays the names of the remaining two candidates, Bishop Raphael and Father Raphael Ava Mina, during the papal election ceremony on Nov. 4, 2012.

Bishoy Gerges waves to the audience after he picked out the name of Bishop Tawadros from a glass urn on Nov. 4, 2012.

Bishop Tawadros, 60, soon to be Pope Tawadros II, greets well-wishers, not shown, after being named the 118th Coptic Pope on Nov. 4, 2012.

Christian Copts push to enter Saint Mark's Coptic Cathedral in Cairo on March 19, 2012 where tens of thousands bade farewell to Pope Shenouda III.

Coptic nuns mourn the death of Pope Shenouda III in Saint Mark's Coptic Cathedral on March 19, 2012.

A Coptic Christian mourns the death of Pope Shenouda III, the spiritual leader of the Middle East's largest Christian minority on March 18.

Egyptian Christians gather to mourn the death of Pope Shenouda III, the head of Egypt's Coptic Orthodox Church, outside the Abbasiya Cathedral in Cairo on March 18.

A Coptic Christian priest holds candles next to a picture of Egyptian Coptic Christian Pope Shenouda III in the Church of the Holy Sepulchre in Jerusalem's Old City on March 18.

An Egyptian Christian grieves outside the Coptic Christian Saints Church in the Mediterranean port city of Alexandria, Egypt, Saturday, Jan. 1, 2011. A car exploded in front of the church early Saturday as worshippers emerged from a New Year's Mass, killing at least 21 people according to officials, and sparking clashes between Christians and Muslims, a sign of the sectarian anger that has been arising with greater frequency in Egypt.

Egyptian firemen try to put out a vehicle fire following a car bomb blast outside a church in the north Egyptian city of Alexandria, Egypt, Jan. 1, 2011, killing at least 21 people and injuring 43. Witnesses said that a car that was parked outside the church exploded around 20 minutes after midnight, targeting Coptic Christians who were attending the New Year‘s Eve mass. Christians account for roughly 10 per cent of Egypt's population, according to official figures.

Egyptian riot police clash with Christians in front of the Coptic Orthodox church in Alexandria, 230 km (140 miles) north of Cairo, Jan. 1, 2011. A car bombing outside the church killed 21 people as worshippers gathered to mark the New Year, security and medical sources said on Saturday.

Egyptian Christians shout as the bodies of several victims of a car bomb attack are carried into ambulances in front of the the Coptic Orthodox church in Alexandria, Egypt, Jan. 1, 2011. The car bombing outside the church killed 21 people as worshippers gathered to mark the New Year, security and medical sources said on Saturday.