An 8-year-old Jacksonville boy shot and killed his sister and wounded his brother while home alone yesterday, according to police.

A five-year-old girl was killed and a 4-year-old boy was injured during the incident, which occurred when the children’s mother left them home alone for an undetermined amount of time.

“We have no reason to believe this [shooting] was an intentional act. …We believe, in the absence of any other information being developed, that unfortunately this is a tragic unfortunate accidental shooting,” Sheriff’s Office Chief Chris Butler Butler said, according to the Jacksonville Times Union.

» RELATED: Gwinnett child’s accidental shooting latest in series of gun incidents

A single bullet caused the fatal injury to the 8-year-old’s younger sister, as well as a non-life threatening injury to his brother.

No charges had been filed as of Saturday night.

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