Nineteen jihadists allegedly linked to the anti-Coptic attack that killed seven people on Friday in Minya, central Egypt, were killed in an exchange of "Gun shots" with the police, the Interior Ministry announced on Sunday.
It said the alleged militants opened fire when they realized they were being besieged by security forces.
Islamic State claimed responsibility for Friday's attack in Minya when gunmen targeted two buses near the Monastery of St. Samuel the Confessor, 260 km (160 miles) south of Cairo.More news: NBC Airs Racist Trump Ad Nixed by CNN; Will & Grace Star 'Ashamed'
Security forces killed the suspects in a firefight after a chase in a mountainous area of the desert west of Minya governorate, the ministry said in a statement.
The ministry published photos of bloodied bodies with their faces concealed and assault rifles and shotguns lying beside them.
Sisi led the 2013 overthrow of an elected but divisive Islamist president and has since waged a sweeping crackdown on dissent, jailing thousands of Islamists and other activists.More news: Man paralysed by garden slug dies after eight years
EI jihadists regularly attack Copts, who represent about 10% of the population of almost 100 million Nation. "I pray for the victims, pilgrims killed just because they are Christians, and I ask Holy Mary to console families and the whole community", the pope said.
Those killed were part of the group that killed seven Coptic Christian pilgrims in the same province on Friday, the ministry said.
Twin church bombings in April 2017 left more than 40 people dead, and in December past year a gunman killed nine people in a church in southern Cairo.More news: OnePlus 6T may soon come in a color that isn't black
"When an Egyptian falls in a terrorist attack, we suffer and all the people of Egypt suffer", Sisi said in an address to a youth forum in Sharm el-Sheikh.