00:40 West Virginia Train Derails and Explodes Matt Sampson has the details on this fiery accident.

A train car carrying a flammable and toxic gas derailed early Thursday and caught fire in eastern Tennessee, prompting an evacuation within a 1.5-mile radius, authorities said.

The fire has since been extinguished CSX, the operator of the train, said. Evacuation orders were lifted for businesses and residential areas Friday afternoon.

CSX will keep its community outreach center open until all needs of affected community members are met.

<img class="styles__noscript__2rw2y" src="https://dsx.weather.com//util/image/w/maryville-storms.png?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0" srcset="https://dsx.weather.com//util/image/w/maryville-storms.png?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 400w, https://dsx.weather.com//util/image/w/maryville-storms.png?v=ap&w=980&h=551&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 800w" > Storms were approaching the Maryville area Thursday morning, which could complicate cleanup, forecasters said.

CSX said that 27 of the 57 cars on the train were carrying hazardous materials, including 9 cars carrying acrylonitrile, a toxic, flammable liquid often used to make plastics. One of the cars carrying 24,000 gallons of acrylonitrile derailed, the company said, setting off the explosion and ensuing fire.

Acrylonitrile can cause membrane irritation , headaches, nausea and kidney irritation if inhaled in high levels, according to the EPA. According the Associated Press, burning acrylonitrile can create cyanide, raising additional concerns.

Eighty-seven people have been treated for issues related to exposure to the gas, including respiratory issues, nausea and skin irritation, the Maryville city manager Greg McClain said.

Ten law enforcement officers were taken to the hospital after breathing in fumes from the blaze, Blount County Sheriff's Department spokeswoman Marian O'Briant told the AP.

(MORE: Maryville Forecast )

CSX is on scene with local and state environmental officials, constructing a plan to remove affected soils and ensure they are disposed of in the proper manner, the company said in a statement.

During a Friday morning press conference, officials said there was no indication water or air quality were affected by the incident.

Evacuations in the area surrounding the crash remained in effect early Friday morning. On its Facebook page, the Blount County Sheriff's Office said the evacuations could last from 24 to 48 hours.

(MORE: North America's Explosive Oil-by-Rail Problem )

CSX said that the cause of the derailment was under investigation by the Federal Railroad Administration. So far, 35 train cars have been removed from the tracks, with 21 others yet to be moved.

Authorities told the Associated Press that they didn't know how much acrylonitrile had leaked or burned from the derailed tanker car.

The CSX train was traveling from Cincinnati, Ohio, to Waycross, Georgia.

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