U.S. Judge Fred Biery ruled Monday that any removal or transfer of 5-year-old Liam Conejo Ramos and his father, Adrian Alexander Conejo Arias, is on hold while a court case proceeds.

The father and son are now at family detention facility in Dilley, Texas, near San Antonio.

They were taken into custody last week outside their home in Minnesota. Neighbors and school officials say that federal immigration officers used the preschooler as “bait” by telling him to knock on the door to his house so that his mother would answer.