The attack happened in the Auburn-Gresham neighborhood near 87th and Halsted.
Activist Andrew Holmes hit the streets Tuesday passing out community alert flyers and warned students waiting at bus stops to be careful.
"We just want the teenagers to be safe going to school and ask these perpetrators to keep your hands off these kids," said Andrew Holmes, activist.
Police say Monday morning at 8 a.m., a 14-year-old girl was approached by a man who asked her for some change. When she refused, she was allegedly dragged from a bus shelter near 87th and Halsted, taken behind a nearby abandoned building and sexually assaulted. The young girl managed to get to school and tell school officials what happened.
Students waiting near there on Tuesday say they always have to stay aware.
"I keep a phone on me so that's my best protection," said Lashonea Smythe, student.
Residents that live in this area hope the person is brought to justice.
"I was actually shocked because I am up at those hours and I'm trying to figure out how," said Roseland Johnson, resident.
"I'm concerned for one thing, this is my neighborhood, I walk this way every day in the morning. I'm along that path over there, it's concern for my safety," said Paula Camp, resident.
Her attacker is described as a black man about 19 years old, 5-foot-7 with a husky build, dark complexion and fingernails that were "excessively bitten down to the skin," according to police.
He wore a black skull cap, a black ski mask over the lower half of his face, a red jacket with blue and white strips down the sleeves, dark blue True Religion jeans and white Air Force One gym shoes.
Residents are being advised not to let children walk alone, to identify safe havens on their routes to school and to report suspicious people to 911.
The Sun-Times Media Wire contributed to this report.