Detectives with the Douglas County sheriff's department are investigating a weekend brawl that left three men seriously injured and a home located in a rural part of the county nothing but ashen rubble. The result of arson, according to investigators.

Chief Deputy Vern Johnson said that his department received a call of an assault in progress at the home near Ava at about 11 p.m. last Saturday. When officers arrived they found the injured men and called for emergency crews to transport them to the hospital. One of those men is still hospitalized with "non-life threatening injuries," according to Johnson.

While deputies were investigating the assault, they were dispatched back to the original crime scene which was fully engulfed in flames about two and a half hours later. A woman was inside of the home when the fire broke out according to Johnson, who also said that some sort of flammable liquid had been poured throughout the home . The State Fire Marshal's office has been called in to assist detectives with their investigation.

Cops have four persons of interest in the case, three men and a woman. No arrests have been made.