Three girls have been arrested in connection with an attack on a 15-year-old girl with special needs in Chicago, police said Thursday.

The attack was recorded on cellphone video and posted on social media. The video shows the victim surrounded by a teen boy and at least five other teen girls before she’s punched repeatedly as she screams for help, according to ABC7.

The victim’s friends said the group offered to walk with the teen to the CTA Red Line but said it was all just a set up so they could jump her and record the beating.

On Thursday, spokesman for the Chicago police, Anthony Guglielmi said three girls, ages 13, 14, and 15, have been arrested in connection with that attack and the charges include aggravated battery and mob action.

The attack occurred during a five-day span that the victim had been missing from home, police said. The same day the victim’s family reported her missing, she was found by another friend and the friend’s mother riding the Blue Line Tuesday.

The girl was taken to the 11th district where they decided to bring her to the University of Chicago Medical Center.

Supporters of the teen said the incident began when the girl, who is a high school sophomore and suffers from a mental disability, they claimed, she was not only beaten but also sexually assaulted after she refused to perform a sex act on a man the group all knew in exchange for a free tattoo. Other teen girls allegedly did perform the act.

Categories: U.S. Illinois