(AP) — Police are investigating the stabbing death of a 74-year-old man they believe was attacked after confronting two people.

A news release from Omaha police says Paul Riederer died early Tuesday. Officers responded to a report of a cutting and found Riederer with a stab wound.

Police say Riederer told officers he was stabbed after confronting two suspects, although he did not realize at first that he had been stabbed.

Riederer was taken to an Omaha hospital with an injury not initially believed to be life threatening, but his condition worsened and he later died.

Police continue to investigate and ask anyone with information to contact Crime Stoppers or call police at 402-444-5652.