The incident happened Sunday at around 3:30 a.m. in the 6500-block of South Cottage Grove Avenue in West Woodlawn.
A group was exiting a house when a fight broke out, leaving two 19-year-old men stabbed, according to the police.
This first victim had cuts to the left arm and was taken to the hospital in good condition.
The second victim, had stomach injuries and was sent the hospital in critical condition.
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No one is in custody. CPD Area One Detectives are investigating.