Truck explodes in Walmart parking lot

A truck exploded Saturday morning in a Walmart parking lot.

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In a video, bystanders could be heard yelling at a man who appeared to be the truck's owner to get away from the truck.

"I got thousands of dollars of tools in there," the man could be heard saying.

Firefighters were able to quickly douse the flames. The cause of the fire is unknown.

There were no injuries, officials said.