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ST. FRANCIS COUNTY, Ark. —The westbound lanes of I-40 in Arkansas were blocked on Wednesday due to a fatal accident involving at least five vehicles.

According to the Arkansas Department of Transportation, the accident happened just east of Forrest City near mile marker 250. Arkansas State Police say a fatal accident involving an 18-wheeler and a car led to the five-car pile up.

The cleanup took several hours and traffic was detoured at the Parkin exit to Highway 70.

The wreck left drivers wondering what caused it.

“How did the accident happen?” driver Keith Keller asked. He had been stuck in traffic for more than four hours.

But Keller wasn’t the only driver confused by the massive slow down.

“I kind of had to be somewhere today, so two hours of waiting,” Lindsey Troutt said.

Her friend, Moon Poland, on the hand couldn’t stop thinking about the victims.

“My heart goes out to the family,” Poland said.

The westbound lanes has since been re-opened.

Arkansas State Police won’t release the victim’s names at this time, and they aren’t sure if the wreck is weather related.