Actor Danny Trejo has revealed what sparked a violent Fourth of July fight that he was a part of.

Last Friday, the Machete star told Fox 11 Los Angeles how he ended up getting into an altercation during a parade in the Los Angeles neighborhood of Sunland-Tujunga when bystanders launched water balloons at the 80-year-old actor and some of his cherished lowriders.

We came, and then bam. All of a sudden, our car got hit by a water balloon, Trejo said, adding, Somebody yelled, Its acid, and I panicked.

Worried his vehicles were being vandalized and that he was in danger, he said he got out of the car to look, and then a balloon hit me, and then I saw the guy throwing it.

Video obtained by Fox 11 showed the actor and restaurateur approach a man throwing the water balloons and try to punch him before being knocked to the ground.

Other footage shared by TMZ saw Trejo wielding a lawn chair during the altercation as others tried to subdue the fight.