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WASHINGTONPARISH, La. -- A 12-year-old girl was arrested for attempted first-degree murder and is in the Florida Parishes Juvenile Detention Center for allegedly trying to kill her niece, according to the Washington Parish Sheriff's Office.

The girl was living in a home with her 16-year-old sister and the 16-year-old's infant daughter, according to the sheriff's office.

'According to testimony from the 12-year-old, she was jealous of attention being given to the infant, so (she) decided to kill the infant by administering liquid medication to the child while the mother of the child was bathing. Two different doses of the medication were given over a two day period,' said a statement from the sheriff's office.

Several adults in the home became concerned because the infant was sleeping for an extended periods, and when asked about the infant, the 12-year-old girl confessed to giving the infant the medication, said the sheriff's office.

The infant taken to Riverside Medical Center and has recovered from the effects of the medication.

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