Greenville chemical plant blast triggers shelter-in-place order

Emergency crews scrambled to a chemical plant in Greenville, Mississippi, shortly after 7 a.m. Wednesday following a violent explosion.

Washington County officials reported the initial blast involved a chemical herbicide stored in a unit described as a hot box. Thick smoke quickly billowed from the site, forcing authorities to issue a shelter-in-place order for the surrounding neighborhood. Multiple agencies deployed to the scene as the smoke plume spread toward nearby streets and homes.

Firefighters and emergency personnel worked to contain the flames while undergoing strict decontamination protocols due to potential chemical exposure. Local and state responders coordinated their efforts throughout the morning operation. Greenville Mayor Errick Simmons addressed the public to ensure residents understood the safety measures in place. “Our first priority is the safety of our residents, our first responders, and everyone working at or near the facility,” Simmons said. He urged citizens to remain calm, avoid the immediate area, and allow emergency crews the space needed to work safely.

Officials confirmed that no injuries were reported in the incident. The shelter-in-place order was lifted once the situation stabilized. The cause of the blast remains under investigation by local authorities.