BOISE, Idaho -

A Mexican national who formerly lived in St. Anthony was sentenced in U.S. District Court in Boise to four years and eight months in prison Monday for possession of sexually explicit images of minors.

Heriberto Aleman-Aguero, 25, pleaded guilty to the charge before Chief U.S. District Judge Lynn B. Winmill in November.

According to a plea agreement, U.S. Attorney Wendy Olson said Aleman-Aguero's crime was discovered when he took his cellular phone to a repair shop in July 2011. The person repairing the phone observed several images of child pornography while reprogramming it.

Rexburg police and U.S. Immigration and Customs Enforcement's Homeland Security Investigations executed a search warrant for the phone. Forensic analysis confirmed the presence of several sexually explicit images of minors.

Winmill also sentenced Aleman-Aguero to serve five years of supervised release following his prison term and to forfeit property used in committing the crime.