Scared us to death and still a nervous nellie when i drive it or adjust the seat

Leaving church had my XUV model running at idle in a parking lot AC was running my wife smelled an odd odor and then a small electrical fire erupted under her passenger seat. smoke and sparks, I turned vehicle off, waited and turned it back on. Drove it home and to work, then a dealership today no problems so far. It is still being diagnosed. Number 8 30 amp circuit breaker that controls the power seats checked out to be ok.