Five immigrants died and several others were injured on Sunday when their vehicle careened out of control while being chased by US Border Patrol agents in Texas about 90 miles (145 km) north of the Mexican border, US media reported, citing officials.
Boyd said a Dimmitt County Sheriff's deputy took over the chase just west of Big Wells, but the vehicle, which was traveling around 100 miles per hour, ran off the road onto the gravel before flipping several times when it tried to get back on the roadway, the sheriff said. "We've seen this many, many times".
He said four people died at the scene, and several were flown by emergency helicopter to a hospital in San Antonio.
Thee were 14 people in the vehicle, including the driver and a passenger who were both USA citizens.
Boyd said there needs to be a wall built because this is a "real problem" in the area. Six people were taken to a San Antonio hospital, and four others went to a local hospital in Dimmit County.
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In a statement, the Border Patrol said the chase began after an agent spotted "three vehicles traveling in tandem pass his location on a rural highway" and the agent suspected that "a smuggling event was taking place".
Several people were arrested after another agent stopped the second vehicle, but the third vehicle didn't stop when an agent tried to pull it over, Customs and Border Protection said.
He added: 'This is a flawless example of why our borders need to be secure'. All five people who died were undocumented.
The driver is now in custody with Homeland Security Investigations, a division of the Department of Homeland Security, according to the Texas Department of Public Safety.
The weight of the people causes the vehicle to become unstable and makes it easy for crashes to occur, Border Patrol officials previously told Breitbart Texas.