ROCHESTER, N.H. (AP) — Police are looking for a man who attacked an 18-year-old woman outside a Planet Fitness gym in New Hampshire, punching her 39 times and leaving her badly injured.

Dmitriy Eremenkov/Thinkstock
Dmitriy Eremenkov/Thinkstock
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On Tuesday, Rochester police released a 16-second clip on its Facebook page of the 10 p.m. June 12 attack taken from the gym's surveillance camera. It shows a man in his 20s — dressed in a white T-shirt, dark shorts and wearing sunglasses— getting out of his car and walking toward the gym. Unprovoked, the man comes up from behind the woman and starts hitting her as she is about to get into her car. The video only shows the first punch.

The woman received serious injuries that were not life threatening. The man fled in a light-colored Ford Fusion or similar model.

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