Story highlights A Christian church southwest of Cairo is attacked, state news says

Moderate Muslims put out fire at one church, halted other attacks, church staff say

A Coptic Orthodox Church leader says 52 churches have been attacked in 24 hours

Bishop: "It's about burning churches to initiate a response that spirals into greater violence"

For 67 years, the Virgin Mary Church has been a peaceful refuge for Shenouda El Sayeh, much like the Giza province village of Kafr Hakim where it rests and where he has lived all those years.

But, as he swept its floors on Thursday, it was painfully obvious things had changed.

The night before, a mob -- chanting against Coptic Christians such as El Sayeh and calling for Egypt to become an "Islamic state" -- had torched and looted the Virgin Mary Church.

"I didn't expect this to happen," El Sayeh said.

He's not alone. Christians all around Egypt are cleaning up in the aftermath of a spate of attacks, which came on the country's deadliest day since the 2011 revolution that overthrew longtime President Hosni Mubarak.

Photos: Photos: Egypt protests Photos: Photos: Egypt protests Photos: Egypt protests – Protesters and Egyptian riot police clash in Cairo on January 17, as the country awaits the results of a constitutional referendum. On January 18, the electoral commission announced the constitution had overwhelmingly been approved. Hide Caption 1 of 20 Photos: Photos: Egypt protests Photos: Egypt protests – An Egyptian youth holds up his national flag outside a polling station in Cairo on January 14, day one of a two-day vote on a new constitution. Hide Caption 2 of 20 Photos: Photos: Egypt protests Photos: Egypt protests – On December 25, 2013, The Egyptian interim government declared the Mohammed Morsy-led Muslim Brotherhood a terrorist organization. The action was taken in response to a police station bombing in Mansoura, which the government has stated was the responsibility of the Brotherhood, despite denials from the group itself. Hide Caption 3 of 20 Photos: Photos: Egypt protests Photos: Egypt protests – Cairo University's students backing ousted Islamist president Mohamed Morsy flash the four-finger sign during a demonstration against July's military "coup " in Tahrir square on December 1, 2013. The four-finger sign has become associated with a government crackdown on pro-Morsy supporters in Cairo's Rabaa al-Adawiya square on August 14. Hide Caption 4 of 20 Photos: Photos: Egypt protests Photos: Egypt protests – Egyptian women members of the Muslim Brotherhood hold roses as they stand in the defendants' cage dressed in prison issue white during their trial in at the court in the Egyptian Mediterranean city of Alexandria on December 7, 2013. Hide Caption 5 of 20 Photos: Photos: Egypt protests Photos: Egypt protests – Egyptian protesters use flare lights at Talaat Harb Square in downtown Cairo on November 26, 2013 during a clash with police after the security forces dispersed protesters from a demonstration organized by human rights group "No Military Trials for Civilians" in the first unauthorized protest staged in the capital since the adoption of a law that regulates demonstrations. Hide Caption 6 of 20 Photos: Photos: Egypt protests Egypt protests – A soldier sets up barbed wire in anticipation of protesters outside the constitutional court in Cairo on Sunday, August 18, 2013. During the previous week about 900 people -- security forces as well as citizens -- had been killed. Deaths occurred when the military used force to clear supporters of ousted president Mohamed Morsy from two sit-in sites in Cairo, and violence raged after Morsy supporters staged demonstrations. Hide Caption 7 of 20 Photos: Photos: Egypt protests Egypt protests – Friends and relatives of Ammar Badie, 38, killed during clashes in Ramses Square, carry his coffin during his funeral in Al-Hamed mosque in Cairo on August 18, 2013. Ammar Badie was the son of the Muslim Brotherhood's spiritual leader, Mohammed Badie. Hide Caption 8 of 20 Photos: Photos: Egypt protests Egypt protests – Wreckage and debris litter the area around the Al-Fateh mosque in Cairo, where hundreds of Islamist protesters had barricaded themselves on Saturday, August 17, 2013. Thousands defied an emergency order by taking to the streets the day before to mark a "Friday of anger" in support of ousted president Mohamed Morsy. Hide Caption 9 of 20 Photos: Photos: Egypt protests Egypt protests – Policemen stand guard inside a room of Al-Fateh mosque as supporters of ousted president Mohamed Morsy exchange gunfire with security forces inside the mosque in Cairo on Saturday, August 17, 2013. Hide Caption 10 of 20 Photos: Photos: Egypt protests Egypt protests – Members of the Muslim Brotherhood and Mohamed Morsy supporters flee shooting near Ramses Square in Cairo on August 16, 2013. Hide Caption 11 of 20 Photos: Photos: Egypt protests Egypt protests – Egyptian soldiers take positions alongside armored vehicles as they guard the entrance to Tahrir Square in Cairo on Friday, August 16, 2013. Hide Caption 12 of 20 Photos: Photos: Egypt protests Egypt protests – A man on checks out a list of names of those killed in the crackdown on, on August 15, 2013. Hide Caption 13 of 20 Photos: Photos: Egypt protests Egypt protests – A man walks inside the burned-out Rabaa Al-Adawiya mosque in Cairo on August 15, 2013. Hide Caption 14 of 20 Photos: Photos: Egypt protests Photos: Egypt protests – Mohamed Morsy masks are displayed for sale at the base for supporters of the ousted president on July 12, 2013 in Cairo, Egypt. The country has been in a state of political paralysis following the ousting of former president and Muslim Brotherhood leader Morsy by the military. Hide Caption 15 of 20 Photos: Photos: Egypt protests Photos: Egypt protests – Two veiled Egyptian women, supporters of Mohamed Morsy, sit in front of police standing behind barbed wire fencing that blocks the access to the headquarters of the Republican Guard in Cairo on July 8, 2013. Hide Caption 16 of 20 Photos: Photos: Egypt protests Egypt protests – A woman tries to stop a military bulldozer from hurting a wounded youth during clashes on August 14, 2013, in eastern Cairo. Hide Caption 17 of 20 Photos: Photos: Egypt protests Egypt protests – Supporters of ousted president Mohamed Morsy run as Egyptian security forces fire toward them on August 14, 2013. Hide Caption 18 of 20 Photos: Photos: Egypt protests Egypt protests – The national identity cards of protesters allegedly killed during a clear-out operation by Egyptian security forces on pro-Morsy demonstrators are exchanged at the Rabaa al-Adawiya Medical Center on August 14, 2013. Hide Caption 19 of 20 Photos: Photos: Egypt protests Egypt protests – Egyptian security forces detain protesters in Cairo's Nasr City district on August 14, 2013. Hide Caption 20 of 20

JUST WATCHED Christians targeted in Egypt Replay More Videos ... MUST WATCH Christians targeted in Egypt 02:34

JUST WATCHED Obama on Egypt: Violence needs to stop Replay More Videos ... MUST WATCH Obama on Egypt: Violence needs to stop 07:43

JUST WATCHED Emam mosque becomes temporary morgue Replay More Videos ... MUST WATCH Emam mosque becomes temporary morgue 01:03

Bishop Angaelos, the Cairo-born head of the Coptic Orthodox Church in the United Kingdom, said he was told by colleagues in Egypt that 52 churches were attacked in a 24-hour span that started Wednesday, as well as numerous Christians' homes and businesses.

Ishak Ibrahim, a researcher with the Egyptian Initiative for Personal Rights, told CNN he had confirmed attacks on at least 30 churches so far, in addition to the targeting of church-related facilities, including schools and cultural centers.

Those churches reportedly set ablaze Wednesday included St. George Church in Sohag, a city south of Cairo on the Nile River.

And the new day brought new attacks. Prince Tadros Church in Fayoum, which is southwest of Cairo, was stormed and burned Thursday night, according to the official Middle East News Agency.

This and other attacks have been blamed by some on supporters of the Muslim Brotherhood, the Islamist movement which backs recently deposed President Mohamed Morsy. Government efforts to clear the group's Cairo protest camps resulted in gruesome scenes in the capital: Egypt's health ministry says that at least 580 people were killed and more than 4,000 injured amid clashes involving security forces and Morsy supporters.

Against this backdrop, it may be some time before it's established what group, if any, is behind the church attacks, and how coordinated this violence has been.

Until then, Christians in Egypt are left to try to put things back together, as well as to attempt to make sense of what's transpired.

As Dalia Ziada of the Ibn Khaldun Center for Development Studies, told CNN: "This is horrible to happen in only one day."

'A very dangerous game to play'

Egypt will have much to deal with if, and when, things do settle down. Once that happens, Angaelos says that a proper investigation of the church attacks should follow -- especially since, he feels, the sheer scale of incidents suggests they were orchestrated, rather than a byproduct of chaotic unrest.

"We would want the people who have done it to be brought to justice because I think they are trying to do something which is much more dangerous," he said.

"It's not just about burning churches, it's about burning churches to initiate a response that then spirals into even greater violence -- and that is a very, very dangerous game to play."

The targeting of churches and Christian properties was not unexpected, Angaelos said, given the tensions in Cairo and elsewhere and in light of escalating attacks on Coptic Christians in recent weeks.

The growing threat led him last week to issue a statement warning of "a very real risk upon the life of every Christian." Pope Tawadros II, the church's leader in Egypt, also suspended weekly public events for fear of attacks on Christian congregations.

But the warnings didn't prevent the violence, nor did security efforts to protect churches and Christian communities, according to Ibrahim.

Said Angaelos, "The ferocity and the speed with which it all happened ... was quite surprising."

Burning of books

A Bible Society of Egypt statement posted online Wednesday reported the "complete burning and destruction" of its bookshops in the cities of Assiut and Minia, in southern Egypt.

"Fortunately we were closed today, fearing such an attack, so none of our staff were injured," wrote Ramez Atallah, the society's general director. "The attackers demolished the metal doors protecting the bookshops, broke the store windows behind them and set the bookshops on fire."

Other stores and parked cars on those streets were also destroyed, he said.

"It is important to underline that -- while some Christian properties have been the victim of this violence -- they are by no means the only ones targeted," Atallah said.

"This is an attack against the state by a violent minority in an attempt to destabilize the nation."

On it are sites in Alexandria, Arish, Assiut, Beni Suef, Cairo, Fayoum, Gharbiya, Giza, Minya, Qena, Sohag and Suez. They include churches and schools, as well as homes and businesses belonging to Coptic Christians. CNN has not been able independently to verify the reports.

Asked about the attacks on churches Wednesday, U.S. State Department Spokeswoman Marie Harf said the United States was deeply concerned. "We will continue speaking out against this and continue talking to all parties and all sides about renouncing this violence, about moving forward with a democratic process."

Daniel Sinclair, director of communications at Christian Solidarity Worldwide, said the group was "deeply concerned at the unwarranted and continuing targeting of the Coptic community. We urge the government to ensure comprehensive security to all Egyptians, regardless of their religion."

Long history in Egypt

Egypt's Christian minority has been the target of a number of attacks in recent years. The bombing of a major church in Alexandria in January 2011 killed 21 people and sparked worldwide condemnation.

The situation has only become worse since Egypt's popular revolution overthrew former President Hosni Mubarak in 2011, said Angaelos.

"In the past two-and-a-half years, we've had more deaths of people just because they are Christians than in the last 20 years," he said, adding that this had not triggered violent retaliation.

He hopes for forgiveness and reconciliation among all Egyptians going forward, to help build a unified country.

Christians have been in Egypt since the 1st century and were, for centuries, the majority. Some 90% of Coptic Christians still live in the country, he said, making up the largest Christian community in the Middle East.

Angaelos puts the proportion of Christians in Egypt at 15 to 20% of the population. The CIA World Factbook says 10% of Egypt's population is Christian, while the Pew Research Center, which says firm numbers are hard to come by, puts the figure at about 5%.

Back in Kafr Hakim, Atia Ghattas told CNN his family's houses were attacked on the same night the church was looted. There was incitement against the Coptic community through the mosques in the area, he said.

Father Boktor Saad, of Kafr Hakim's Virgin Mary Church, said he believes that a small group of extremists were responsible for inciting groups to attack his church.

But, he and other church staff said, not everyone participated, and some non-Christians prevented the situation in that village from getting worse.

They credited moderate Muslims with putting out the fire at Virgin Mary, and halting further attacks on Coptic Christians' homes and shops.