None of the injuries was considered life-threatening, officials said.
The incident took place at the intersection of LaSalle Street and Martin Luther King Jr. Boulevard, police said.
Police Superintendent Ronal Serpas, who was among those who responded to the scene, told NBC station WDSU that six teenage boys or young men were outside a small grocery when a late-model white sedan drove past, with shots fired from inside the car.
The car then sped off.
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