Firefighters responded to a fire that broke out at an unoccupied home in Pahoa Monday night. The fire broke out at a single-family home at 15-1709 Akeakamai Loop just after 7 p.m. Upon arrival, firefighters observed a structure that had collapsed in the blaze. There were no occupants in the home at the time, the Hawaii County Fire Department said in a news release. Firefighters brought the blaze under control at about 7:22 p.m. and extinguished it at 7:50 p.m. No injuries were reported. Damage to the structure and its contents was estimated at $82,500. The cause of the fire is under investigation.