Security personnel survey the scene of a bomb blast at St. George's Church in Tanta, Egypt, on Palm Sunday. KHALED ELFIQI/EPA

Members of the congregation mourn inside St. George's. KHALED ELFIQI/EPA/EPA

A priest looks at the damage inside the church. KHALED ELFIQI/EPA

Security personnel bag a cross as evidence. KHALED ELFIQI/EPA

Priests sit next to security personnel investigating the scene of the bombing. KHALED ELFIQI/EPA