Excerpts from abc7chicago.com:
The Marengo Fire & Rescue Districts and Union Fire Protection District responded just after 4 a.m. Tuesday morning to the 9600-block of Knolltop Road in unincorporated Union for a reported residential fire that was initially reported by a passerby who saw flames coming from the front of the home.
Firefighters arrived just before 4:20 a.m., and saw heavy flames coming from the roof of the one-story home and they called for more help as the blaze spread quickly, Nearly 15 neighboring agencies responded. The fire was under control within 25 minutes, and crews extinguished hotspots for two more hours.
Firefighters found two men, a dog and a cat inside the home. They were all pronounced deceased. Their identities were not immediately released, and the McHenry County Coroner’s Office is investigating their cause and manner of death.
The Office of the Illinois State Fire Marshal, Marengo Fire & Rescue Districts, Union Fire Protection District, and the McHenry County Sheriff’s Office are investigating the cause of the fire.