COPENHAGEN, Denmark (AP) — A Danish police officer and two other people were shot Friday, including the suspected perpetrator, authorities said.

The shooting occurred in Nørresundby, in the North Jutland region in northern Denmark. The injuries were serious, Søren Pejtersen, a spokesperson for the North Jutland police, said in a statement posted to Facebook.

Police received a report of a fire in an industrial area of Nørresundby at 1:39 p.m. (1139 GMT) and rushed to the scene, Danish broadcaster DR reported.

The officers were met with gunshots, the statement said, and they returned fire. It wasn’t immediately clear whether the police officer was shot by the suspect or injured in friendly fire. It also wasn’t immediately clear who the third injured person was, or who shot them.

Police said that the shooting was over by 3 p.m. (1300 GMT), but the investigation would continue, DR reported.

A column of black smoke was visible in photos and video from the scene. Further details weren’t immediately available.