Published: Mar 28, 2011 10:56 PM EDT
Updated: Mar 28, 2011 8:04 PM EDT

NAPLES, Fla.- The Naples Police Department is investigating a bizarre hit-and-run that happened in the 700 block of 5th Ave. S.

"I was at my store and it was probably about 10:45p.m. and I heard a loud bang and I said that sounds like a gunshot," said Amy Rosenbluth, whose store is located a few feet from where the accident occurred.

After hearing the gunshot, Rosenbluth looked outside.

"It was all cornered off with police cars and I heard someone got hit by a car," she said.

Police say a woman in a Mercedes hit a person walking in an alley. According to the report, the driver got out of her car and said she didn't hit anyone. Then an Allegiance Security guard arrived, witnesses say as he got out of his vehicle, she got into hers.

"This vehicle (the Mercedes) didn't want to stay on the scene so he (security guard) fired two rounds from his gun at fleeing vehicle," said Lt. John Barkley, a spokesperson for the Naples Police Department.

The driver was found and identified. Her name isn't being released, but police say she could face charges and they're checking to see if alcohol was a factor.

"She wasn't even aware at the time that someone had shot at her," said Lt.Barkley.

The state attorney's office will determine whether the security guard will face charges for discharging a firearm in public.