Authorities are looking into what caused an explosion at an etha - KTIV News 4 Sioux City IA: News, Weather and Sports

Authorities are looking into what caused an explosion at an ethanol plant in Ida County Thursday night

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Authorities are looking into what caused an explosion at an ethanol plant in Ida County Thursday night.

Witnesses heard a loud boom just before 9 p.m. in Arthur, Iowa.

Workers at a nearby convenience store say their building shook from the explosion and they saw black smoke coming from the facility.

Other people who live up the road say they saw a mushroom cloud.

A spokesperson for Flint Hills Resources says the explosion happened in a grain dryer.

No one was injured and the damage was contained to one unit inside a portion of the plant.

The ethanol plant will be closed until officials can figure out what caused the explosion and make sure it is safe to restart operations.

The business employs 50 people.

Updated - July 17, 2014, 11:16 p.m.

A spokesperson for Flint Hills Resources says the explosion happened in a grain dryer.

No one was injured and the damage was contained to one unit inside a portion of the plant. 

Jake Reint with Flint Hills Resources says to ensure safety the ethanol plant will be closed until officials figure out what caused the explosion.

The plant in Arthur, Iowa employs 50 people.

First responders remain on the scene.

Previous Story:

Authorities in Ida County have responded to what appears to be an explosion at an ethanol plant in Arthur, Iowa.

Several eye witnesses say they heard a big boom around 8:45 p.m.

Thursday and then saw black smoke coming out of the facility.

We're still waiting to hear from authorities on the scene.


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