Police released the name of an elderly man killed Monday night during a house fire that happened in the 3500 block of North Green Bay Road in Caledonia.

Doctors pronounced Duane J. Rymenams, 77, dead at the hospital about an hour after the blaze started at 7:06 p.m.

Battalion Chief Jeffrey Buenger said the fire was caused by negligent use of smoking materials. A passerby saw heavy thick smoke coming from the roof vents of the house and called 911.

Arriving first, an officer with the Caledonia Police Department kicked in the door and was overcome by thick black smoke coming from the home. Initially, he couldn’t go into the home and he saw a dog run out, according to a report by the Caledonia Police Department.

Fire personnel got Rymenams out of the house and started CPR, but he wasn’t breathing. Rescue workers took Rymenams to the hospital, where he died an hour later.

Karla Shuemate, Rymenams’ daughter, told police her father suffered from COPD and he was on oxygen. He told Shuemate that he wasn’t feeling well earlier in the day.

According to a neighbor, a dog was in the home at the time of the fire and he survived.