UPDATE: On Thursday, the Georgetown County Sheriff's office said a sixth person has been arrested in connection to the ongoing investigation.
Blake Allen Finley, 18, has been charged with engaging in a riot -- also known as "affray" -- according to the Sheriff's Office and jail records.
Also, the Sheriff's Office said second charges of assault by mob have been issued to Rutledge, Newton and Gatlin, who remained in custody Thursday at the Georgetown County jail. Holmes and Snow were released on bond Thursday.
Five Andrews teenagers were arrested Wednesday and charged with assault after video of a beating spread on social media.
The Georgetown County Sheriff's Office said each person is charged with third degree assault by a mob. Those arrested were: Anthony Robert Holmes, David Dequan Rutledge Jr., Kenneth Daniel Newton, Alquavion Melvin Snow and Gunnar Travis Gatlin. Holmes is 18 years old and the others are each 17.
The incident happened Tuesday on Indian Hut Road, the Sheriff's Office said. Video showing a young man being beaten by a group of people spread Tuesday afternoon on Facebook.
The Georgetown Times received Facebook messages linking to the video, which shows several people taunting and then attacking the victim -- multiple people kick and punch him while he is on the ground trying to protect himself.
While the attack unfolds, several bystanders can been seen watching the beating.
The Times has been told the victim was not seriously injured. The video contains profanity and violence, and the Georgetown Times is choosing not to share it.
The video shows more than five people kicking or hitting the victim, and the Sheriff's Office said more arrests are likely.
Law enforcement was made aware of the video on Tuesday.
"Investigators worked through the night to identify and interview those involved," the Sheriff's Office said in a press release. The arrests were made Tuesday afternoon. As of late Tuesday, the five people charged were being held at the Georgetown County jail.
People with information on the assault should call the Sheriff's Office at 843-546-5102.