Chicago police said the victim was walking on the sidewalk when she heard gunshots and then realized that she was shot in her arm.

Witnesses dining at a nearby restaurant told NBC Chicago they heard gunshots, which led to diners hitting the deck inside, with a large police presence outside.

A woman visiting from Connecticut was shot while walking with her 11-year-old son Sunday night across the street from AMC River East 21 in Streeterville, a movie theater that has raised concerns about violence and loitering.