PHOENIX — An Amber Alert was issued Friday after two children were abducted in Tucson by their parents, who tased and duct-taped a case aide during a supervised visit.

Five-year-old Luis Ramirez Jr. and 7-month-old Kahmila Ramirez were taken by Luis Ramirez, 30, and Andrea Ramirez, 28, in a greenish-teal 1996 Toyota Camry four-door sedan with Arizona license plate BKH8427.

On Saturday afternoon, the car was located in Nogales, Arizona, near the Mexico border but the parents and children were not found.

The supervised visit was in Silverlake Park at 2420 S. Kino Parkway. Luis Ramirez assaulted the Arizona Department of Child Safety case aide and tied her to a tree before fleeing, Tucson police said.

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There was no information available about why the couple didn’t have custody of the children. The children and parents all are Hispanic with black hair and brown eyes.

The boy was last seen wearing a gray and white striped polo shirt with khaki shorts. He is 3-foot-3 and weighs 35 pounds. His sister, who weighs 14 pounds, was wearing a white onesie with yellow ruffles.

The father, who is 5-foot-6 and weighs 200 pounds, was last seen wearing a red and white polo shirt with blue jeans. He has a mustache and beard.

The mother, who is 5-foot-1 and 195 pounds, was last seen wearing a white shirt with blue jeans with her hair in a bun.

Anybody with information was asked to call 911.

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