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CHICAGO, Illinois (WGN) –

Seven people have been charged in a brutal attack on Chicago’s Brown Line platform where one person was cut in the head with a machete.

Around 12:30 a.m. Monday, a 26-year-old man and a 17-year-old boy were waiting for the Brown Line train at the Kedzie stop.

A group of seven, six males and one female, surrounded the victims on the platform and someone in the group told them to flash their gang signs and they refused, telling the group they weren’t in a gang.

That’s when police say Mario Elvira pulled out a machete and started swinging. He struck the 26-year-old, according to police, leaving deep cuts to his neck and head. He continued to violently swing the weapon until the next train showed up on the platform, which perhaps forced the group to run.

Police later caught up with the suspects, four adults and three juveniles, and charged them with the incident. They are all charged with robbery, aggravated battery and trespassing on the CTA. The three minors, two males and one female, also face charges.

The victim was rushed to Swedish Covenant Hospital and at last check was listed in stable condition.