A security guard opened fire on a driver after the driver clipped him with his car door outside a North Side bar, San Antonio police said.

The shooting occurred around 2 a.m. Friday outside Bar Central in the 400 block of Hildebrand.

Police said a customer told the security guard a man in the back parking lot had a gun and had opened fire.

"Several subjects jumped into a black vehicle that was located in the parking lot, and began to reverse out. At some point, security guards may have tried to intervene, and the open door to the vehicle reportedly struck one of the security guards as it was backing out of the space," said San Antonio police Sgt. Javier Salazar.

The security guard told police he saw 25-year-old Nathaniel DelaZerda hide a handgun, and had tried to get him out of his car.

Police say it is unclear whether DelaZerda intentionally hit the security guard with his car door, before the security guard shot through the window of the open door.

Police said about an hour later, DelaZerda drove himself to Methodist Hospital in what was believed to be the same car. Officials said he had been shot once with a wound to his left bicep and chest.

He was taken from Methodist Hospital to San Antonio Military Medical Center and was expected to recover, police said.

Police said DelaZerda was not likely to face charges, but the security guard could possibly face charges for aggravated assault.

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