Investigators in Cedar Rapids are looking for the cause of a fatal fire there early Sunday. The Cedar Rapids Fire Department said paper carriers spotted heavy smoke coming from the residence on the city’s northwest just before six a.m. Sunday.

They pounded on the door trying to see if anyone was home. When firefighters arrived,they entered the burning home and found 43-year-old Kerry Bye in a back bedroom. Efforts to revive Bye were unsuccessful. The fire department report said the main concentration of the fire was in the living room and there was major heat and smoke damage throughout the entire house.

The report also said there did not appear to be working smoke alarms in the home.