At 6:30 p.m. Friday, Duluth responded to a report of a woman who had been stabbed in the 500 block of West Fourth Street. When they arrived on the scene, they also found a man with a broken leg.
The suspect in the incident has not been identified and reportedly fled the scene.
The injured woman was taken by private vehicle to a local hospital immediately after the alleged attack and was no longer on location when officers arrived. A police press release said the victim continued to be treated at the hospital for "critical injuries," as of 8:33 p.m.
The man with the broken leg also has been hospitalized and said he sustained his injury as a result of the altercation.
The police statement said: "This investigation is ongoing and no further information is available at this time."