Aurora police responded just after 8 p.m. to a report of a shooting in the 300-block of Sunset Avenue.
When they arrived, they found the women, ages 34, 36, and 55, with gunshot wounds, police said.
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Aurora Fire Department paramedics took the women to a local hospital for treatment of non-life threatening injuries, police said.
Police did not immediately provide any additional information about what led up to the shooting.
Anyone with information is asked to call the Aurora Police Department's Investigations Division at (630) 256-5500.
Tips can also be submitted anonymously to Aurora Area Crime Stoppers at (630) 892-1000 or via their website at www.p3tips.com/135. Crime Stoppers offers cash rewards up to $5,000 for information leading to the arrest of felony crime suspects and the capture of felony fugitives.