Prosecutors say 33-year-old Amber Gutierrez was charged Wednesday with assault by means likely to produce great bodily injury. She remains jailed on $100,000 bail and faces up to seven years in prison if convicted.

Police say the woman’s sixth-grade daughter showed up in a San Pedro alley last week for an after-school fight but took along her mother and aunt.

A cellphone video allegedly recorded all three grabbing or punching the 12-year-old.

Gutierrez surrendered Tuesday after the video was posted online.

The girl and her aunt are being sought.