Immigration officials detained a US citizen for nearly 10 days in Arizona, according to court records and press reports.

As the NPR affiliate Arizona Public Media, first reported, 19-year-old Jose Hermosillo, a New Mexico resident visiting Arizona, was detained by border patrol agents in Nogales, a city along the Mexico border about an hour south of Tucson.

According to a border patrol criminal complaint, on 8 April, a border patrol official found Hermosillo “without the proper immigration documents” and claimed that the young American had admitted entering the US illegally from Mexico. Two days later, the federal court document notes that Hermosillo continued to claim he was a US citizen. On 17 April, a federal judge dismissed his case.