The Maricopa County Attorney's Office says the 14-year-old boy was being charged as an adult and faces two counts of sexual assault and kidnapping.
The other boys are being charged as juveniles. The 9-year-old is charged with one count of sexual assault, the 10-year-old faces two counts of the charge and one of kidnapping, and a 13-year-old is charged with three counts of sexual assault and one of kidnapping.
The boys are being held in a juvenile corrections facility while the girl is in the care of Child Protective Services.
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