Gainesville Police are investigating a weekend fight that initially left a 25-year-old man in critical condition at Northeast Georgia Medical Center.

Witnesses said Devin Thomas and Alexander Charles Brown, both 25, were arguing when Brown "became physical with Thomas" and Thomas' head hit the ground at some point, said Officer Kevin Holbrook, spokesman for the police department.

The incident took place about 1:30 a.m. Sunday near 212 Spring St. in downtown Gainesville, he said.

Officers found Thomas unconscious when they arrived, and he was taken by ambulance to Northeast Georgia Medical Center, Holbrook said.

Brown was found later by officers at a nearby convenience store. He was charged with aggravated battery and aggravated assault and is being held at the Hall County Jail.

The investigation is ongoing, Holbrook said.

Other details, including what make have sparked the altercation, weren't available Monday.

By Monday afternoon, Thomas' condition had improved to satisfactory.

Bill Moffitt, owner of Blonde, a night club at 212 Spring St., said the incident didn't happen on his property and didn't involve his customers.

"It actually happened in an alley behind our place, about 5 feet from the front door of an office building," Moffitt said.

A Blonde security guard was asked to respond to the incident, "and he apparently chased after the (man who left the scene)," he said.