Gann said he then went back in, searching houses. The people found by the volunteer firefighter were also transported to the hospital.
He then took the three to a staging area near Mississippi 3 and Phoenix Road where they were treated for exposure to CO2 and transported via ambulance to a hospital in Vicksburg. "I grabbed her, threw her and her phone in the truck and got her out of there," he said. He turned on Mississippi 433 and found a female sitting inside her car, door open, disoriented and talking to someone on speaker phone, "telling them she didn't feel good." Gann said he yelled to the person on the other end that he was with the sheriff's department and was taking her to safety. Gann found "two people, wandering around like zombies, just walking around" and "grabbed them and put them in my truck." Inside the perimeter, Gann ran into a volunteer firefighter who had pulled two unconscious people out of their cars. The sheriff's department "closed Highway 3, both north and south of ground zero, and 433 east of ground zero area." "Once they told me it was CO2, I felt like it was imperative we get people in vehicles on the road out of that area," he said. Gann said he immediately started reaching out to people who would know what the fog was. Terry Gann, investigator with the Yazoo County Sheriff's Department, said he heard a call of "green fog crossing Highway 433 and a female having a seizure." Rescue efforts: Imperative we get people 'out of that area' The federal Pipeline and Hazardous Materials Safety Administration is investigating the incident. The pipeline is owned by Denbury Resources Inc., an independent oil and natural gas company based in Plano, Texas, that describes its primary focus as enhanced oil recovery utilizing CO2. A shelter opened for those affected at Yazoo County Middle School. More than 300 people were evacuated from their homes and 45 were sent to two area hospitals, Baptist Memorial Hospital-Yazoo and Merit Heath River Region in Vicksburg. When the Mississippi Department of Environmental Quality later tested the air quality on site, they found CO2. Saturday in a heavily wooded area off Mississippi 433 near Satartia, contained carbon dioxide and hydrogen sulfide, according the Mississippi Emergency Management Agency. The pipeline, which ruptured around 7 p.m. A sheriff's investigator who rescued people from their homes and cars after an oil and gas company's pipeline ruptured in Yazoo County Saturday said the sick were acting "like zombies." In the middle of rescuing people, that deputy also got sick.