Police are looking for a man believed responsible for stabbing another patron inside the State Theatre in Portland following a dispute during a concert Sunday night.

The 29-year-old Norway man who was injured is expected to survive, police said. He has not been identified.

Officers met with the victim in the Congress Street venue’s lobby, where they saw he was suffering from at least one puncture wound.

Portland Police Commander James Sweatt said theater staff made the decision to end the show early and police interviewed other patrons who matched the suspect description as they left the venue.

Sweatt said everyone was cooperative, and that detectives have already previewed security footage from cameras inside.

The suspect is described as a white male between 28 and 33 years old. He is 5’08” to 5’11” tall with an average build and short black hair. He was clean shaven and wearing a collared jacket, police said.

Anyone with information about what happened should contact police at 874-8575.

State Theatre in Portland