The on scene incident commander says that although no hazardous materials are involved in the blaze which has destroyed HGVs and their containers, people living nearby should avoid breathing in the smoke.
Five fire engines are now at the scene of a blaze on Hickman Avenue in Wolverhampton.
However, the fire continues to burn and water is still being forced down onto some of the vehicles from a hydraulic platform.
The incident officer says that despite the daylight helping progress, crews will be delayed at the scene for some time, with relief crews arriving shortly.