An explosion and fire at a chemical plant in Texas has left one person injured, whilst another is still missing, according to authorities.
Witnesses told NBC DFW they heard several explosions at around 9am local time at the Tri-Chem Industries Plant in Cresson.
Roger Deeds, the sheriff of Hood County, said the injured person has been seriously burned.
The Mayor of Cresson, Bob Cornett, said several firefighters were sent to the scene from seven different fire departments.
Hazardous material crews are also working at the scene. Reports claim four ambulances were also sent to the plant and the public is being warned to go to hospital if people think they have come near the smoke from the fire.
Some roads have had to be closed due to the amount of smoke, however the area has not yet been evacuated.
Cornett added that firefighters were considering retreating from the area because there is a risk of further explosions.
He also said that the plant creates several products with liquid chemicals such as acid and soap, according to CBS DFW.
A witness working near the plant claimed the fire smelt like sulfur and said "things were blowing out of the roof."