Police said angry residents threw bricks and hammers at officers in a northeast Atlanta neighborhood on Tuesday.
Neighbors in an apartment complex on Hardee Street became upset over an arrest that got physical on Monday.
"About 13, 14 police cars, just started beating him, beating him in the face, trying to break his leg, spraying him with mace, hitting him with a stick, and they just did him all wrong and he ain't did nothing," said Anthony Jenkins.
Cell phone video shot by "CopWatch," a police watchdog group, shows officers trying to restrain a man and take him into custody. In the video, the man is seen resisting the arrest and swinging at officers. Police then responded with pepper spray and their batons.
On Tuesday, Atlanta police say there were bricks and hammers thrown at their police cruisers when they responded to reports of a gathering at the same apartment complex.
"They backed out of the area. There must have been maybe 50 people and not that many officers. They basically retreated, not to escalate the situation and for their own safety and everybody else's," said Sgt. Greg Lyon of the Atlanta Police Department.
Residents say they were protesting Monday's arrest.
One person has now been taken into custody in the unrest and more charges are expected.
Police say they are launching an investigation into the incident.
"They are going to start an investigation to determine what exactly happened out there, but no formal complaint was brought to the department about the officer's actions yesterday, but we're just learning of that and we're going to start an investigation on that as well," Lyon said.
Authorities are attempting to gather as much video of the incident as they can in order to view the confrontation from different angles.