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
Men walked a mile long route around Worcester today in ladies' shoes to show their opposition to male violence against women and girls.
A mum who thought she could never have children was stunned after she gave birth to a baby just 2 days after finding out she was pregnant.
Rain and gusty winds will be clearing to the southeast through the evening.