BOSTON (WHDH) -- A family member of one of the victims of a brawl inside a Boston parking garage spoke about the dangerous scene.

Cameras recorded nearly 30 young men ganging up on at least two other men, who were left bloodied after being punched and knocked down repeatedly around 2:45 a.m. Sunday inside the City Place Garage in the State Transportation Building on Charles Street in the Park Plaza area of Boston.

Two people were identified and taken to the hospital with minor injuries.

“He had several stitches in his eye. The other boy had to go to the hospital. He had a fracture in his arm, chipped teeth, concussion,” said Gary Brisco, whose son was attacked.

Gary Brisco said his 22-year-old son Jonathan was in Boston celebrating a friend’s birthday when traffic backed up in the garage and mayhem broke out.

“It was over just gridlock in a high-rise parking garage and someone beeped the horn,” said Gary Brisco.

Gary Brisco said the beeping unleashed the fury of the crowd. The violent attack lasted about 4 minutes.

“I seen when the guys were actually getting at each other. I don’t know what started it or how it ended, but I seen them in the rumble,” said a witness, who quickly left the area.

Others who heard of the fight were not surprised and guessed the punches were fueled by alcohol.

Police are looking for people involved in a brawl inside a Boston parking garage. They are also looking for the person who recorded the video.