The group was travelling in two buses and a truck through the province, which is home to a sizeable Christian minority, he said.
Al-Arabiya reported that ten masked men carried out the shooting attack. Additionally, it was also reported that the terrorists were masked and dressed in uniforms similar to an army uniform, drove in two vehicles and used automatic weapons.
Sources in Egypt estimated that women and children were among the victims.
Coptic Christians, who make up about 10 percent of Egypt's population of 92 million, have been the subject of a series of deadly attacks in recent months.
About 70 have been killed in bomb attacks on churches in the cities of Cairo, Alexandria and Tanta since December.
Those attacks were claimed by Islamic State. There was no immediate claim of responsibility for Friday's attack.