Two Martyrs Church, which was situated in Atfeeh, Helwan, was torched in March, according to the Carnegie Endowment for International Peace, which noted that both Christians and Muslims died in protests after the arson. "They see them as infidels", he said.
Copts make up about 10 percent of Egypt's 92 million people, the largest Christian minority in the Middle East.
Pope Francis, marking Palm Sunday in St Peter's Square, denounced the bombings, expressing "deep condolences to my brother, Pope Tawadros II, the Coptic Church and all of the dear Egyptian nation". He says the Coptic community has grown familiar with such attacks, but that witnessing one firsthand nonetheless left him stunned. "This is very risky".
"Christians are in a state of shock", he added.
"Everyone is falling short. the government, the people. nothing is good."Others wept openly as women wailed in mourning. Some collapsed near the caskets, which bore the word "martyr".
An ambulance arrives to the site of a bomb blast that took place on Sunday in Tanta, Egypt, April 9, 2017.
On New Year's Day of 2011, a vehicle bomb at the Church of the Two Saints in Alexandria killed 23 people who had come there to pray.
Pictures of the elder Maher, sitting helplessly in blood-stained vestments after the attack, were widely circulated online. Islamic State later claimed responsibility for that attack.
At least 21 people were killed and over 50 injured early Sunday after an explosion rocked a church in Egypt's Tanta, north of Cairo, media reports said.
Coptic Christians have put their faith in el-Sissi, who championed himself as the bulwark against Islamists. The two leaders met at the White House on April 3.
Jared Kushner omits some foreign contacts on security form
Colbert said he "wasn't surprised" because there was "known friction" between the two. House Majority Leader Kevin McCarthy (R-Calif.) is reportedly in the running.
A spate of deadly jihadist-linked attacks in Egypt's restive Sinai Peninsula in February prompted some Coptic families to flee their homes.
The assault is the latest on a religious minority increasingly targeted by Islamist militants, and a challenge to President Abdel Fattah al-Sisi, who has pledged to protect them as part of his campaign against extremism.
The state of emergency was announced on Sunday in a televised address by President Abdel Fattah al-Sisi following the church attacks, which were claimed by Islamic State.
In theory, it would allow for arrests without warrants, swifter prosecution of suspects, and special courts. "I saw blood, organs of friends scattered over the ground". "It's a purely political decision that is meant to have a psychological impact". Security forces violently dispersed demonstrations in the months that followed, killing hundreds of protesters.
President el-Sissi held an emergency meeting at the National Defence Council while saying the attacks would only strengthen the country against "evil forces". "The status quo of media and press freedoms is ideal for the security authorities to work without much noise".
Israel meanwhile closed its Taba border crossing to Egypt after its anti-terrorism office warned of an "imminent" militant attack there, underlining fears of more violence.
The president declared a state of emergency after the attacks.
The attacks in the northern cities of Tanta and Alexandria that injured 126 people came just weeks before Pope Francis is due to visit.
"They want to use Islam to tear us apart". The closure comes hours before the start of the Passover holiday. The military said a rocket fired from Sinai hit a greenhouse but caused no injuries.