Sinai - "ISIS" group launched an extremely fierce phase of its battle against Egypt, and transmitted on Sunday a video entitled "Fight all the polytheists" about the bombing of the Petrine Church mid-December last year. The video held the slogan "the State of Egypt" instead of "the State of Sinai", which conveys very important implications about the future intentions of the organization. A senior security source said that a team of sovereign organs analyzed the video which was proved to be shot in Northern Sinai and the source recognized the identity of the terrorist who instigated the targeting of Copts. His name is ‘Mahmoud Shafik' and his knickname is "Abou Yehia". The source asserted that the security organs decided to raise the security level of vital premises and churches in Cairo as well as securing the church symbols led by Pope Tawadros II, the Pope off Alexandria and the Patriarch of Saint Mark. It was decided to tighten the inspections on the roads between Cairo, the capital, and Ismailia and Suez governorates and to increase the number of checkpoints to prevent the smuggling of explosives. The security source also confirmed that the security organs monitored a plan to smuggle a very dangerous terrorist from Sinai Peninsula to the heart of Cairo to carry out a major terrorist operation. The security organs also intensified their efforts to find the stolen cars which might be used in those terrorist operations as usual. In the video recording, "Abou Yehia" was standing on the debris of a building, calling for killing of Christians in the pretext that they "broke the Pact of Omar with the Christians of the East." "Abou Yehia" also threatened to wage attacks in the heart of Cairo, saying: "Soon we will liberate Cairo and release you from captivity with explosives", which considered as a message to the sleeping cells to start new terrorist operations like the massacre of the Petrine Church.