Firefighters from the Cairo, Alda, Grand Island Rural and Wood River fire departments responded Thursday to a fire at 10487 W. Capital Ave. southeast of Cairo.
A fire call came across the scanner shortly after 2 p.m. for a structure fire that was fully engulfed in flames.
The Cairo Rural Fire department arrived on scene within 10 minutes of receiving the call, according to Joe Grabowski, assistant fire chief. The roof collapsed shortly after firefighters arrived.
The blaze was under control 45 minutes later.
The homeowners were not home when the fire started, and are temporarily staying in Wood River.
Firefighters also worked to put out hotspots that jumped the road and started in bean stubble.
The fire marshal is still investigating the possible cause.