A policeman was killed while trying to dismantle an explosive device outside a Coptic church in Egypt on Saturday.
Two other officers were also wounded in the explosion as security personnel attempted to defuse the device in Nasr City on the edge of Cairo, the source added.
It had been hidden inside a bag that was searched by police. The policeman who was killed, Mustafa Abid, was a specialist in mine clearance.
Coptic Christians, who account for around 10 percent of Egypt’s population, have been targeted in a string of attacks by the Islamic State group in recent years.