A teen was arrested and charged Friday in an assault that happened outside Washington Hilton Hotel earlier this month.

A 17-year-old boy from Southeast D.C. was arrested Friday and charged with aggravated assault in the attack, police said.

A witness said he and the victim were walking toward the hotel about 1 a.m. July 14 when someone in a group of about 10 teens pointed at the man and screamed, "That's him," according to a police report.

Surveillance video showed one of the boys initiate the assault with a punch that caused the victim to stagger and back up before the rest of the group joined in. As the group begins to disperse, a couple of people are seen in the video kicking and stomping on the man while he was down.

The man suffered head injuries and a left eye socket injury. His injuries were not life-threatening, police said. The witness suffered a swollen left eye. They were treated at a local hospital.

The case remains under investigation, police said Friday.

Anyone with information in the case is asked to call police at 202-727-9099 or text their tip to 50411.