A fire at a Southern Finishing warehouse (801 E Church St.) broke out Saturday after a spark lighted up sawdust contained in a dustbin.
According to Martinsville Fire Chief, Ted Anderson, the dustbin could hold the equivalent of a tractor-trailer's worth of dust.
The scene is under control, but still being worked. There have been no reported injuries.
At points, the scene has been covered by a lot of thick, black and heavy smoke.
According to Chief Anderson, this fire has been deemed accidental.