Bodies found in overheated truck in a Walmart in Texas

A man believed to be the driver of a truck carrying up to 100 suspected illegal immigrants in Texas is expected to be charged in relation to the deaths of ten of the occupants.

Sixty-year-old Florida native James Matthew Bradley Jr was identified by the US Attorney’s office as the driver, and was arrested in connection with the incident which occurred in San Antonio. Federal prosecutors say he will be charged on Monday, however according to Reuters, the local US Attorney’s Office would not confirm whether Mr Bradley was the truck driver who was arrested.

Thirty people were found, with at least 20 in critical condition in a trailer parked at a Walmart store in San Antonio, where temperatures outside the vehicle reached 100 degrees and temperatures inside were thought to have been as high as 140 degrees.

It is believed that as many as 100 people were pressed together in the trailer, and four of the survivors were thought to be between the ages of 10 and 17, according to The Washington Post. Some of the people allegedly smuggled into the country had fled to the wooded area surrounding Walmart, police say.

Many were suffering from heat stroke and exhaustion, and their skin was very hot to the touch, rescuers said. Their hearts were racing, and some will have suffered irreversible brain damage. The trailer lacked any air conditioning and did not have a water supply. (Reuters)

See more news-related photo galleries and follow us on Yahoo News Photo Twitter and Tumblr.

Eight bodies found in overheated truck in a Walmart in Texas

James Mathew Bradley Jr., 60, of Clearwater, Fla., left, arrives at the federal courthouse for a hearing, Monday, July 24, 2017, in San Antonio. Bradley was taken into custody and is expected to be charged in connection to the people who died after being crammed into a sweltering tractor-trailer found parked outside a Walmart in the midsummer Texas heat Sunday, according to authorities in what they described as an immigrant-smuggling attempt gone wrong. (AP Photo/Eric Gay)

Bodies found in overheated truck in a Walmart in Texas

Police officers work on a crime scene after eight people believed to be illegal immigrants being smuggled into the United States were found dead inside a sweltering 18-wheeler trailer parked behind a Walmart store in San Antonio, Texas, July 23, 2017. (Ray Whitehouse/Reuters)

Eight bodies found in overheated truck in a Walmart in Texas

A man holds a candle during a vigil at San Fernando Cathedral for victims who died as a result of being transported in a tractor-trailer, Sunday, July 23, 2017, in San Antonio. Several people died after being crammed into a sweltering tractor-trailer found parked outside a Walmart in the midsummer Texas heat, authorities said Sunday in what they described as an immigrant-smuggling attempt gone wrong. (AP Photo/Eric Gay)

Bodies found in overheated truck in a Walmart in Texas

Police officers work on a crime scene after eight people believed to be illegal immigrants being smuggled into the United States were found dead inside a sweltering 18-wheeler trailer parked behind a Walmart store in San Antonio, Texas, July 23, 2017. (Ray Whitehouse/Reuters)

Eight bodies found in overheated truck in a Walmart in Texas

Eldia Contreras, right, holds a sign as she takes part in a vigil at San Fernando Cathedral for victims who died as a result of being transported in a tractor-trailer, Sunday, July 23, 2017, in San Antonio. Several people died after being crammed into a sweltering tractor-trailer found parked outside a Walmart in the midsummer Texas heat, authorities said Sunday in what they described as an immigrant-smuggling attempt gone wrong. (AP Photo/Eric Gay)

Eight bodies found in overheated truck in a Walmart in Texas

San Antonio police officers investigate the scene Sunday, July 23, 2017, where eight people were found dead in a tractor-trailer loaded with at least 30 others outside a Walmart store in stifling summer heat in what police are calling a horrific human trafficking case, in San Antonio. (AP Photo/Eric Gay)

Eight bodies found in overheated truck in a Walmart in Texas

San Antonio police officers investigate the scene where eight people were found dead in a tractor-trailer loaded with at least 30 others outside a Walmart store in stifling summer heat in what police are calling a horrific human trafficking case, Sunday, July 23, 2017, in San Antonio. (AP Photo/Eric Gay)

Eight bodies found in overheated truck in a Walmart in Texas

Young girls take part in a vigil at San Fernando Cathedral for victims who died as a result of being transported in a tractor-trailer, Sunday, July 23, 2017, in San Antonio. Several people died after being crammed into a sweltering tractor-trailer found parked outside a Walmart in the midsummer Texas heat, authorities said Sunday in what they described as an immigrant-smuggling attempt gone wrong. (AP Photo/Eric Gay)

Eight bodies found in overheated truck in a Walmart in Texas

A hearse sits in the parking lot of a Walmart store where eight people were found dead in a tractor-trailer loaded with at least 30 others outside in stifling summer heat in what police are calling a horrific human trafficking case, Sunday, July 23, 2017, in San Antonio. (AP Photo/Eric Gay)

Eight bodies found in overheated truck in a Walmart in Texas

Officials investigate a truck that was found to contain 38 suspected illegal immigrants in San Antonio, Texas, July 23, 2017. (Photo Darren Abate/EPA)

Eight bodies found in overheated truck in a Walmart in Texas

San Antonio police officers investigate the scene where eight people were found dead in a tractor-trailer loaded with at least 30 others outside a Walmart store in stifling summer heat in what police are calling a horrific human trafficking case, Sunday, July 23, 2017, in San Antonio. (AP Photo/Eric Gay)

Eight bodies found in overheated truck in a Walmart in Texas

San Antonio police officers investigate the scene where eight people were found dead in a tractor-trailer loaded with at least 30 others outside a Walmart store in stifling summer heat in what police are calling a horrific human trafficking case, Sunday, July 23, 2017, in San Antonio. (AP Photo/Eric Gay)

Eight bodies found in overheated truck in a Walmart in Texas

Officials investigate a truck that was found to contain 38 suspected illegal immigrants in San Antonio, Texas, July 23, 2017. (Photo Darren Abate/EPA)

Eight bodies found in overheated truck in a Walmart in Texas

San Antonio police officers investigate the scene where eight people were found dead in a tractor-trailer loaded with at least 30 others outside a Walmart store in stifling summer heat in what police are calling a horrific human trafficking case, Sunday, July 23, 2017, in San Antonio. (AP Photo/Eric Gay)

Eight bodies found in overheated truck in a Walmart in Texas

Officials investigate a truck that was found to contain 38 suspected illegal immigrants in San Antonio, Texas, July 23, 2017. (Photo Darren Abate/EPA)

Eight bodies found in overheated truck in a Walmart in Texas

A tractor-trailer is pulled from the scene where San Antonio police and other agencies investigate the scene where eight people were found dead in the trailer loaded with at least 30 others outside a Walmart store in stifling summer heat in what police are calling a horrific human trafficking case, Sunday, July 23, 2017, in San Antonio. (AP Photo/Eric Gay)