At least two people were seriously assaulted as hundreds of people gathered on South Street Saturday night during another flash mob.
Surveillance video shows hundreds of people invading the intersection of 8th and South Streets, filling the street and surrounding a vehicle at about 9 p.m.
Two blocks away, Olympia Pizza employee Seth Kaufman was beaten.
"40 to 50 punches I took. 20 kicks. I just stood my ground as best I could and fought them off," Kaufman said.
Kaufman and restaurant operator Paul Psihogios were trying to keep the unruly crowd from entering the business.
"I'm just trying to hold off the crowd, hold the door," said Psihogios.
At 15th and South Street, a 27-year-old woman was brutally attacked after being surrounded by scores of people.
"She had a broken nose and they knocked out two teeth," said Good Samaritan Rick Almeid, who aided the victim. "She was just an innocent young girl."
Police eventually pushed the crowd up South Street and onto on to Broad Street, yelling that once curfew passed, they'd start loading up buses.
Authorities say they got word through text messages that a flash mob might be forming and quickly deployed.
Three males were arrested on unrelated incidents, including 18-year-old Parrish Kendall.
No arrests have been made in the beatings.
Police say they vow not to allow these incidents to repeat.
"We're going to be stern, we're going to be swift and to be honest with you, we're going to do what we have to do to protect the city," said Deputy Police Commissioner Richard Ross.