(CNN) A case regarding the alleged abuse of migrant children in a Southwest Key shelter will be referred to the Maricopa County Attorney's Office for review and to determine whether criminal charges will be filed, according to the Maricopa County Sheriff's Office.

The news comes after the Arizona Republic obtained surveillance videos through an open records request that show staffers pushing and dragging migrant children in a shelter operated by Southwest Key, the nation's largest provider of migrant children shelters.

According to the newspaper, the incidents took place at the Hacienda Del Sol shelter in Youngtown, Arizona, in mid-September and involved three children and numerous staffers.

The Maricopa County Sheriff's Office initially told CNN it investigated the allegations but determined the actions did not rise to the level of criminal charges.

But the office changed its mind and said in an updated statement released Sunday: "Based upon the evidence gathered during this thorough investigation, MCSO executive command has made the decision to submit the case to the Maricopa County Attorney's Office for its review and determination of criminal charges."

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