Thick black smoke was seen rising into the air after an explosion triggered a large fire at a chemical plant in Shepherd, Texas, on Wednesday morning (8 November). San Jacinto County Office of Emergency Management confirmed the incident prompted the evacuation of a nearby private school and a five-mile shelter-in-place warning. The impacted building was a petroleum processing plant, according to officials. All employees are accounted for, with only one worker suffering a minor burn injury, ABC News reports, while no information has been provided on the cause of the explosion. The city of Shepherd is just under 60 miles north of Houston.