ST. LOUIS COUNTY (KSDK) - A four-year-old boy accidentally shot a three-year-old boy Sunday afternoon in an unincorporated part of north county, police confirm.

It happened in a home located in the 9700 block of Lorna Lane.

The 3-year-old was grazed in the arm, and taken to the hospital with a very minor injury. His 27-year-old father has been brought in by police for questioning.

The incident is under investigation, and no additional information was immediately available.

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