An Egyptian police officer was killed on Saturday while attempting to defuse a bomb found near a church in an eastern Cairo suburb, state television reported, less than two days before Egypt’s Christians celebrate their holiday.
The device was one of two found inside a bag on a nearby rooftop, three security sources and state media reported.
Two policemen and an onlooker were also injured when the device exploded, the security sources said.
There was no immediate claim of responsibility. Egyptian security forces have for years battled Islamist insurgents who have attacked Coptic Christians, tourists and security personnel.
Security forces have stepped up their presence outside churches and other places of worship.
The Copts, who make up around 10 percent of the population, have long complained of discrimination. Authorities have placed armed guards outside churches and monasteries in an attempt to protect them from jihadist attacks.
In November, terrorists killed seven people returning from a Coptic monastery about 160 miles up the River Nile from Cairo.