Photo taken on Dec. 11, 2016 shows the explosion site near a Cathedral in Cairo, Egypt, Dec. 11, 2016. At least 25 people were killed and 49 others injured on Sunday in an explosion at the Coptic Cathedral in Abbasiya's neighborhood of Cairo, Egypt's Ministry of Health said in a statement. (Xinhua/Zhao Dingzhe)

Medical personnel arrive at the explosion site in Cairo, Egypt on Dec. 11, 2016. At least 25 people were killed and 49 others injured on Sunday in an explosion at the Coptic Cathedral in Abbasiya's neighborhood of Cairo, Egypt's Ministry of Health said in a statement. (Xinhua/Zhao Dingzhe)