Tornado damage rated EF3 South Africa
Severe storms ravaged the Panbult, Mpumalanga region in eastern South Africa last Friday. Consequently the tornado snapped many trees over open country. The twister terrified several people as they watched it roar over open fields. Although one woman was hysterical no injuries occurred.
Weather News - Supercell bushfire thunderstorms, tornadoes, fire-whirls and other deadly fires that spin
Great article on supercell and tornadoes based on pyrocumulonimbus clouds.
An analogy has to be drawn to the fire devils and supercell initiated tornadoes from the smoke plume itself.
Here is a video of an organised fire with structure and inflow
Yes, fires can spin.