Updated 10/13/11 – 4:06 p.m.

CHICAGO (CBS) — Two teenage sisters have been charged with battery and suspended from school after viciously beating a classmate in school last week, in an assault captured on cell phone video.

Chicago police said that Sara Mejorado, 17, and Aurelia Mejorado, 18, were charged with misdemeanor battery.

The teenagers are charged with attacking a classmate during biology class last Thursday at Roger C. Sullivan High School, 6631 N. Bosworth Av.

As CBS 2’s Dorothy Tucker reports, an argument in the virtual world might have led up to this very real fight.

According to police reports, the sisters pulled the victim from her chair while the three were sitting in biology class on Oct. 6. The reports said the girls began to punch the teen in the face and body. The video, captured on a cell phone, was more graphic.


In the video, the victim is seen trying to fend off the two sisters as they pull her hair and hit her repeatedly in the head. At one point, one of the sisters begins throwing the victim around and appears to slam her head into a table.

The 14-year-old victim suffered bruises, but police said she wasn’t seriously hurt. She did return to school on Thursday.

It was clear from the video of the attack that the victim could do little against the two sisters who have been charged with the attack.

At one point, a woman tries to intervene in the attack, but then backs away.

“No one deserves to get hit like that. No one deserves to get beat up like that,” classmate Mominatu Boog said.

“She couldn’t defend herself,” classmate David Navarro said. “Two people against one. What can you do?”

The sisters told police they hit the victim because she “had called one of the offenders a name” in class.

Classmates said otherwise.

“You know how they get into arguments through Facebook?” Navarro said. “That, like, revolves up into school.

A Chicago Public Schools spokesperson confirmed the two sisters have been suspended and face further discipline in the attack.

“Chicago Public Schools does not tolerate violence among students in any way. The two students involved in this incident have been suspended from school with further discipline pending,” CPS spokeswoman Marielle Sainvilus said in an email.

CPS also said it will take any actions needed to make sure schools are a safe environment for learning.

Students at Sullivan also weighed in on the disciplinary action against the sisters.

“If they’re coming to school to fight people like that, they shouldn’t be in school,” Boog said. “Obviously, their intent isn’t to be educated.”