Arab League general secretary Nabil al-Arabi (L) offers his condolences to Egypt's Coptic Pope Tawadros II at Saint-Mark's Coptic Cathedral in Cairo's al-Abbassiya district
An Egyptian woman holds a placard with Arabic inscription reading 'We are consoled as retribution began' to denounce the killing of Egyptian Christians in Libya, outside the Coptic Cathedral of Saint Marcos
An Egyptian woman holds a placard with Arabic inscription reading 'We are consoled as retribution began' to denounce the killing of Egyptian Christians in Libya, outside the Coptic Cathedral of Saint Marcos
An Egyptian woman holds a placard with Arabic inscription reading 'We are consoled as retribution began' to denounce the killing of Egyptian Christians in Libya, outside the Coptic Cathedral of Saint Marcos
An Egyptian woman holds a placard with Arabic inscription reading 'We are consoled as retribution began' to denounce the killing of Egyptian Christians in Libya, outside the Coptic Cathedral of Saint Marcos
A handout photo made available by the Egyptian Presidency shows Egyptian President Abdel Fattah al-Sisi (C), speaking during an urgent meeting with National Defense Council at the presidential palace in Cairo
A handout photo made available by the Egyptian Presidency shows Egyptian President Abdel Fattah al-Sisi (C), speaking during an urgent meeting with National Defense Council at the presidential palace in Cairo
A handout photo made available by the Egyptian Presidency shows Egyptian President Abdel Fattah al-Sisi (C), is received at St. Mark's Cathedral in Cairo
A handout photo made available by the Egyptian Presidency shows Egyptian President Abdel Fattah al-Sisi (R) meeting with Pope Tawadros II (L) of Alexandria
A handout photo made available by the Egyptian Presidency shows Egyptian President Abdel Fattah al-Sisi (R) meeting with Pope Tawadros II (L) of Alexandria
Palestinians hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinians hold candles for slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
A Palestinian man holds a candle and portrait of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinian security forces hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinians hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinians hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinians hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinian security forces hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
A Palestinian boy holds candles and portrait of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinians hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinians hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinian security forces hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinians hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
A Palestinian man holds a candle and portrait of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church
Palestinians hold candles and portraits of slain Jordanian pilot, Lt. Muath al-Kasasbeh, killed by the Islamic State group, during a candle light vigil outside the Nativity Church