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Aug. 7, 2015, 6:18 AM GMT / Updated Aug. 7, 2015, 6:33 PM GMT By Shamar Walters and F. Brinley Bruton

A tornado tore through a Wal-Mart and a neighboring sports outlet in Troy, Alabama, flipping trucks and tractor-trailers in the parking lot and injuring at least six people late Thursday.

The National Weather Service in Birmingham confirmed Friday morning that a tornado had touched down and winds reached up to 100 mph.

"What seemed to be a tornado-like storm damaged the Wal-Mart in Troy structurally," Mayor Jason Reeves told NBC News overnight Thursday. "It flipped multiple trucks and tractor trailers in the parking lot, and damaged a strip-mall structure near the Wal-Mart. There is also water damage in the area from damage to a water main."