Witnesses have reported hearing a series of explosions at a industrial site in the Derbyshire town of Belper.
Pictures circulating on social media show billows of black smoke above the site.
More top news
More than 200 drivers a day were caught using their mobile phones illegally in the wake of a major crackdown on the practice.
Tougher sentences will be handed out to perpetrators of domestic violence against children under plans being set out by the Conservatives.
Two people have been arrested after a car crashed into pedestrians in Marbella.