UPDATE:

According to Metro Police, tanks on the back of a white truck may not have been properly locked down and when the driver stopped, a valve was knocked off leading to the explosion.

The driver was able to quickly get out of truck, he was unhurt. No one else was hurt by flying debris. No major damage to any surrounding cars.

FBI came to scene as precaution. Does not appear to be any foul play involved.

Some of the chemicals involved were propane and acetylene which are normal chemicals used for everyday work.

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Authorities are investigating a pick-up truck explosion in Downtown Savannah in Franklin Square. Hundreds of people have already been evacuated from the area.

Fortunately, no one was hurt, and right now the driver of the pick-up truck is being checked out by Emergency Medical Services.

Reportedly, a truck carrying chemicals ignited, causing a serious explosion. No word yet on what type of chemicals were in the truck.

Right now, Broughton Street to Bay Street and Jefferson and Montgomery Streets are all blocked off and the FBI is on scene investigating.

Stay tuned to WSAV News 3, we will bring you more information as we learn more.