An off-duty firefighter spotted smoke at an eastside Petaluma home Sunday evening and went into the home to alert residents their home was afire.
The 5:32 p.m. fire apparently started in the garage of the Tampico Court home, said Petaluma Battalion Chief Phil Sutsos.
Santa Rosa firefighter Tony Camilleri was driving in the area while headed to dinner with his wife when he saw the smoke and went to investigate, said Santa Rosa Battalion Chief Mike Jones.
Camilleri found the garage on fire and the house darkened from a loss of power. There were no firefighters yet on scene.
Neighbors said they thought there were people inside and the firefighter went into the home and made sure an adult and two children got out safely.