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MIAMI (CBSMiami/AP) – Jacksonville leaders and residents say they’re frustrated by the kind of violence that killed a 7-year-old girl, as officials offer an $11,000 reward for information leading to an arrest in the case.

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Jacksonville Sheriff Mike Williams told news outlets Sunday that a stray bullet struck Heydi Rivas Villanueva during crossfire of a gun battle between two groups in a parking lot.

The little girl was sitting in a car with her father and a sibling waiting for her mother to get off work at a nearby restaurant.

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Police say two groups of men began shooting nearby and a bullet struck the child. The gunmen fled.

A good Samaritan drove the child and her father to a nearby hospital. She died a short time later.

Jacksonville Mayor Lenny Curry tweeted, “This is heartbreaking.”

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