
The Albuquerque Journal reports the migrants and driver were taken to the Deming Border Patrol station after agents stopped the U-Haul truck on State Road 9.
Border Patrol officials said in a statement that agents followed footprints from the border to the highway where the truck was sighted in a remote area near Columbus.
Agents said the truck's cargo area was "sweltering" and its only ventilation was from a two-inch opening.
Officials said the driver remains in custody on suspicion of smuggling. Authorities have not released the name of the driver, who is a U.S. citizen.