Fire crews are damping down at the scene of a blaze at a scrap yard in Hereford.
At the height of the fire on Tuesday night, there were 12 appliances at City Spares, in Watery Lane.
Two workers from the yard were slightly injured trying the put the fire out.
Station Commander Phil Major, from Hereford and Worcester Fire and Rescue Service, said: "This was a large fire involving three separate buildings and more than a hundred vehicles."
The fire service were called at 1525 BST and units were called in from as far away as Redditch.
John Price, area commander for Hereford and Worcester Fire and Rescue Service, said the fire started accidentally.
He said firefighters were recycling water and trying to avoid contaminating the land and a nearby stream.
At the height of the fire, the smoke could be seen in Ross-on-Wye, 18 miles away.