Police say arson may be the cause of a house explosion in Joliet.
It happened late Sunday night on South East Circle Drive.
Firefighters had a difficult time battling the fire because there weren’t enough fire hydrants in the area.
A man who lives in the home was taken to Loyola Medical Center with burns to over 70% of his body.
A firefighter was also hurt at the scene but his injuries were not serious.
A dog was reportedly found underneath the rubble, and it survived.
The fire may have something to do with a case of a missing person, police said.
The missing woman is the injured man’s live-in girlfriend.
She was reported missing on June 22, but relatives say they have not heard from her since June 9.
Investigators also say it appears someone tampered with a gas line.
-Chicago Tribune contributed to this report.