Tucson, Arizona - Border Patrol agents from Arizona’s Brian A. Terry and Douglas stations apprehended two registered male sex offenders from Mexico shortly after they entered the U.S. illegally during separate weekend incidents.

Agents first arrested 34-year-old Abigael Calvo-Calvo after he illegally crossed the border near Naco on Saturday afternoon. When agents conducted a records check on Calvo, they learned he was convicted in San Mateo County, California, for “Lewd and Lascivious Acts with a Child Under 14” in 2012.

On Sunday evening, agents from the Douglas Station encountered 33-year-old Juan Herrera-Gameros after he illegally entered the United States west of Douglas. During processing, records checks revealed Herrera was convicted by the Cochise County Superior Court in Bisbee for “Sexual Conduct with a Child” in 2005.

Both men are in federal custody and are being presented for criminal felony immigration charges.