OMAHA, Neb. (AP) — Authorities say a 70-year-old man has died in an Omaha apartment fire.

Firefighters sent to the scene around 2:45 p.m. Saturday found that the fire had burned itself out because there wasn't much oxygen in the apartment. The victim was found sitting upright. The fire appeared to have been started by smoking materials on a couch.

An autopsy was scheduled. The man's name hasn't been released.