CHICAGO (CBS) — Police are investigating after a 58-year-old woman was shot in the back in Chicago’s Grand Crossing neighborhood Saturday afternoon.

Around 12 p.m. the victim was standing on a porch talking with another person in the 1400 block of East 69th Place when police say two unknown men came from an alley and began shooting toward her.

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She was taken in critical condition to the University of Chicago Medical Center with one gunshot wound to the back.

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No one is in custody.