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.
More top news
A man has been arrested after more than 50 mobile phones were reported stolen at a city centre music gig.
Pupils at a local academy say they are unhappy with their 'disgusting' school food which they have described as 'slop'.
Nathan Potter tried to persuade a father to sexually abuse his four-month-old daughter while he watched over the internet.