An Egyptian security official says Muslim gunmen killed two Christian family members on their way to Easter services in southern Egypt.
The official says one man was wounded in Saturday night's attack. He says authorities arrested two of the gunmen and are still searching for the other two.
He spoke on condition of anonymity because he was not authorized to talk to the press.
The attack took place in Qena province, 290 miles (470 kilometers) south of Cairo.
Roman Catholics and Protestants celebrated Easter last week, but Coptic Christians use a different calendar to mark Jesus' resurrection.
Coptic Christians make up 10 per cent of Egypt's 79 million people and generally live in peace with the Muslim majority despite occasional incidents.