When agents tried to make "immigration inspections", two of the three vehicles - a 2007 Suburban and a 2008 Tahoe - led authorities on a high speed chase.
Dimmit County Sheriff Marion Boyd says the driver wasn't seriously injured, so he was taken straight into Homeland Security custody, where he is being investigated.
In Texas' Rio Grande Valley, the busiest corridor for people trying to enter the U.S., Border Patrol officials argue that they have to crack down on migrants and separate adults from children as a deterrent to others. Another occupant remains in critical condition with potentially life-threatening injuries. The driver, believed to be a United States citizen, was rushed to a hospital; the passenger, also believed to be a US citizen, now is in custody. "It's a problem. This is, I think, a ideal example of why our borders need to be secure".
A video has recently made the rounds on the internet of a Border Patrol vehicle appearing to hit and run over a man on the Tohono O'odham Nation in southern Arizona.
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Kirstjen Nielsen told a police conference in Louisiana the young people are being well taken care of in USA detention centres. Capitol Tuesday evening to speak with the Republican Party conference of the House of Representatives.
Growing attention to an immigration policy that is splitting children from parents after their arrests at the border have people wondering what the actual law is.
Some of the victims were flown by helicopter to San Antonio for medical treatment, local media said.
The sheriff said he didn't know where the immigrants were from but said most migrants who travel through the area are from Central America or Mexico.
Since the policy was brought in almost 2,000 children are thought to have been taken away from their parents because they crossed the border and were living in the United States of America illegally.
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Nikki Haley - faces challenges from Haley administration veteran Catherine Templeton, businessman John Warren and others. Nationwide, Democrats are hopeful a "blue wave" of Democratic challengers can upend Republican incumbents in November.
Both sides of Highway 85 were closed for several hours. The agency says an agent suspected the vehicles were conducting a "smuggling event".
The chase began with a Border Patrol agent as the vehicle was coming north from the border, then the Dimmit County Sheriff's deputies took over.
"I think it's devastating", he says. "I was talking to one mother, and she said, "Don't take my child away", and the child started screaming and vomiting and crying hysterically, and she asked the officers, "Can I at least have five minutes to console her?"
According to a federal criminal complaint, the SUV was traveling with 13 suspected undocumented immigrants, including one juvenile, during the time of the crash. "This is why we need more Republicans elected in November." - tweet Saturday.
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Morocco will next take on Portugal on June 20 before ending their group fixtures against 2010 champions Spain on June 25. Portuguese Queiroz takes Iran to Kazan to face Spain next time out and admits a different approach is required.