An after-school fight between several teenagers turned bloody after one of them pulled a knife last Wednesday, according to .
Mendoza, Mario, 17, 600 block of Sangamon, was arrested and charged with three counts of aggravated battery after he cut three Bloom High School students with a knife near Millennium Food Market in the first block of 16th Street, Head of Detectives Joseph Bruni said.
The students were walking home from school when two girls started fighting, police said. Mendoza, who was dating one of the girls, got involved in the fight and cut two girls and one boy, Bruni said.
One of the stabbing victims was a 17-year-old girl, whose lung was punctured during the incident. She was airlifted to Loyola University Medical Center, where she was treated and stablized.
A former Bloom student, Mendoza was kicked out of school for fighting, according to police.
Patch will report more details on this incident as they become available.