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."
CNN iReporter Amir Beshay, from Cairo, helped draw up a list of Christian churches and properties reportedly targeted.
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.