Yavapai County Sheriff's officials say state prosecutors dismissed sexual assault and kidnapping charges Monday and the three teens have been released from custody.
But sheriff's officials say their investigation is ongoing and a final charging decision will be made by the Yavapai County Attorney's Office.
The girl allegedly was assaulted Jan. 31 by three other students from Mingus Union High School in Cottonwood.
Authorities say the three boys were accused of driving the girl to a remote area outside Cottonwood where she allegedly was sexually assaulted.
Sheriff's officials say two 16-year-old suspects later were arrested at the school while a 17-year-old boy was arrested at his Cottonwood home.
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