Nine teenagers were apprehended for the vicious assault on three Marines at a beach in California. 

Nine teenagers were arrested Tuesday in connection with the brutal on-camera beatdown of three Marines on a California beach over the weekend, authorities said. 

The teenagers set their sights on the Marines after they asked the group to stop lighting fireworks — a piece of debris had hit one of them in the face, they claimed. 

Footage captures a mob of teens viciously beating a trio of off-duty Marines on a California beach. 

Police say four males and one female were charged with assault using a deadly weapon, noting they were admitted to a juvenile hall. 

Another four minors were reportedly charged with misdemeanor assault and battery 

CBS News

“We told them we were Marines so they would leave — but they didn’t. They just kept going at it,” one of the servicemen, Hunter Antonino, said. 

Investigators were able to use video footage taken to track down the juvenile suspects, according to the mayor.

The sheriff’s department promised to “investigate this to the fullest” even if the servicemen opted not to press charges.