Se og Hor said in a statement: "We react very strongly to the fact that the security guards have used physical force against our photographer in the field.
"He was in a public place to cover a public event. They had no right to block off the parking lot or the area around the church.
"The matter will therefore be reported to the police, we cannot allow force to be used against journalists and photographers on assignment."
The Norwegian Editors' Association added: "It is very serious that a photojournalist is treated in this way in a public place.
"We react strongly to security personnel behaving as if they have police authority. We believe the matter should be reported, and will support Se og Hor in this."