The cars collided outside the Macy's at 8:00 on Friday night. One of the cars jumped the curb and struck the store.
Witnesses say the van flipped over twice and hit other vehicles before it stopped at the entrance.
The crash left bricks, metal and glass scattered over a wide area.
However, officials said there was no serious damage to the building and there were no evacuations.
All of the victims were inside the vehicles. Nobody on the street or in the store was injured. Two of the victims are children.
The victims are listed in stable condition.
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