Eyewitnesses have told ITV News Central a number of loud explosions could be heard from the fire at G&P batteries in Darlaston, Walsall.
50 firefighters are currently tackling the blaze on Willenhall Road.
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A Malaysian court has found a man guilty of murdering a medical student Neil Dalton from Derbyshire in Borneo.
East Midlands weather: Windy and rainy all night
West Midlands weather: Windy and wet with gales