DE SOTO, Mo. - Workers at a cement mixing plant accidentally started a small fire Monday morning while attempting to thaw out frozen pipes using a blow torch.
The fire occurred around 9:25 a.m. at Arnold Redi Mix in the 1500 block of Clark Street.
Insulation in the building caught fire, spreading to some of the wooden studs in the walls.
Firefighters said the building was already evacuated upon their arrival.