SAN ANTONIO - Updated at 12:30 p.m.:
The death toll in the human trafficking case has now climbed to 10, federal officials announced Monday.
Four men and a woman are being treated at University Hospital for heat-related illness. Their conditions range from good to critical, University Health System officials said.
Two others patients who were treated at University Hospital were discharged Sunday, officials said.
University Hospital is one of seven local hospitals that received patients from the incident.
The man charged with driving a Texas tractor-trailer packed with immigrants in the U.S. illegally will remain in detention after an initial court appearance.
James Matthew Bradley Jr. was handcuffed and wearing blue jail scrubs as U.S. Magistrate Judge Elizabeth Chestney explained he could face the death penalty if convicted. Bradley is charged with transporting immigrants here illegally, resulting in the deaths of 10 people.
He didn't speak about what happened Sunday.
Chestney scheduled another hearing Thursday.
A federal complaint says Bradley told authorities he was driving the trailer to Brownsville, Texas, and was unaware that it was packed with people until he stopped at a Wal-Mart in San Antonio.
According to the complaint, one of the passengers says people in the trailer were taking turns breathing through a hole inside.
Nine people are dead and the death toll could rise after emergency crews pulled dozens of people from a sweltering tractor-trailer found parked outside a Walmart in the midsummer Texas heat, victims of what officials said was an immigrant-smuggling attempt gone wrong.
The driver was arrested, and nearly 20 others taken from the rig were hospitalized in dire condition, many with extreme dehydration and heatstroke, officials said Sunday.
"We're looking at a human-trafficking crime," said San Antonio Police Chief William McManus, calling it "a horrific tragedy."
One U.S. official said Sunday evening that 17 of those rescued were being treated for injuries that were considered life-threatening. The official spoke to The Associated Press on condition of anonymity because the information has not been publicly released.
Authorities were called to the San Antonio parking lot late Saturday or early Sunday and found eight people dead inside the truck. A ninth victim died at the hospital, said Liz Johnson, spokeswoman for U.S. Immigration and Customs Enforcement.
The victims "were very hot to the touch. So these people were in this trailer without any signs of any type of water," San Antonio Fire Chief Charles Hood said.
Authorities would not say whether the trailer was locked when they arrived, but they said it had no working air conditioning.
It was just the latest smuggling-by-truck operation to end in tragedy. In one of the worst cases on record in the U.S., 19 immigrants locked inside a stifling rig died in Victoria, Texas, in 2003.
Based on initial interviews with survivors of the San Antonio tragedy, more than 100 people may have been packed into the back of the 18-wheeler at one point in its journey, ICE acting Director Thomas Homan said. Officials said 39 people were inside when rescuers arrived, and the rest were believed to have escaped or hitched rides to their next destination.
Four of the survivors appeared to be between 10 and 17 years old, Homan said. Investigators gave no details on where the rig began its journey or where it was headed.
But Homan said it was unlikely the truck was used to carry the immigrants across the border into the United States. He said people from Latin America who rely on smuggling networks typically cross the border on foot and are then picked up by a driver.
THE WHOLE STORY:
- Authorities identify suspect in smuggling case that killed 9
- ICE: 100+ people packed into sweltering big rig trailer, only 39 found
- Death toll climbs to 9 in human trafficking case: Here's what we know
- 'Tragedy came to our doorstep': Officials speak out on fatal human trafficking crime
- RAICES slams SAPD over human trafficking case, SAPD fires back
- Trafficking victims found in sweltering trailer suffered 'unbearable' heat
"Even though they have the driver in custody, I can guarantee you there's going to be many more people we're looking for to prosecute," Homan said.
Mexican Consul General in San Antonio Reyna Torres said Mexican nationals were among the survivors and those who died on the rig.
The Mexican government also released a statement Sunday night expressing its condolences to the relatives of those who died and called for an "exhaustive investigation"
A Guatemalan official said two natives of Central American country were among those hospitalized. Consul Cristy Andrino in McAllen said the two told her they had crossed into the U.S. on foot and were later picked up by the rig.
Guatemala was seeking to obtain witness status for the two survivors so they wouldn't be deported, Andrino said.
Federal prosecutors said James Mathew Bradley Jr., 60, of Clearwater, Florida, was taken into custody and would be charged on Monday in federal court. The local U.S. Attorney's Office wouldn't say whether Bradley was the alleged driver of the truck who was arrested. It was not immediately known whether Bradley had an attorney who could speak on his behalf.
The U.S. Homeland Security Department stepped in to take the lead in the investigation from San Antonio police. Department Secretary John Kelly said the incident demonstrates the brutality of smuggling organizations that "have no regard for human life and seek only profits."
The truck had an Iowa license plate and was registered to Pyle Transportation Inc. of Schaller, Iowa. A company official did not immediately respond to a phone message seeking comment.
San Antonio is about a 150-mile (240-kilometer) drive from the Mexican border. The temperature in San Antonio reached 101 degrees (38 Celsius) on Saturday and didn't dip below 90 degrees (32 C) until after 10 p.m.
The tragedy came to light after a person from the truck approached a Walmart employee and asked for water late Saturday night or early Sunday morning, said McManus, the local police chief.
The employee gave the person water and then called police, who found the dead and the desperate inside the rig. Some of those in the truck ran into the woods, McManus said.
Investigators checked store surveillance video, which showed vehicles arriving and picking up people from the truck, authorities said. Walmart released a brief statement Sunday saying it was doing what it could to help investigators.
On Sunday evening, about 100 people gathered at a San Antonio church for a vigil to mourn those killed.
Immigrants' rights activists and church officials held up handmade signs reading "Who here is not an immigrant" and "No human is legal."
Those gathered held a moment of silence, then gave speeches blaming federal and Texas authorities' embrace of harsher immigration policies for contributing to the deaths.
Jonathan Ryan, executive director of a nonprofit called Raices, said it's "an unfortunate example" of what happens when such polices are enacted.
A new law approved by the Texas Legislature lets police inquire about peoples' immigration status during routine interactions like traffic stops.
Bob Libal is executive director of Grassroots Leadership, an Austin-based nonprofit that supports more liberal immigration policies.
"These tragedies are compounded when it's incredibly dangerous and incredibly expensive and we push migration into the hands of illicit actors," Libal told The AP in a phone interview. "Everyone's thoughts today should be not in politicizing it but in making sure that everyone who survived this ordeal is treated with respect and get the protection they need."
A group of immigration lawyers and advocates sued Homeland Security Secretary Kelly and other U.S. officials this month alleging that guards on the U.S. border with Mexico have illegally turned away asylum-seekers.
In the May 2003 case, the immigrants were being taken from South Texas to Houston. Prosecutors said the driver heard them begging and screaming for their lives but refused to free them. The driver was sentenced to nearly 34 years in prison.
"These criminal organizations, they're all about making money. They have no regard for human life," Homan said.
The Border Patrol has reported at least four truck seizures this month in and around Laredo, Texas. On July 7, agents found 72 people crammed into a truck with no means of escape, the agency said. They were from Mexico, Ecuador, Guatemala and El Salvador.
Authorities in Mexico have also made a number of such discoveries over the years.
Last December, they found 110 migrants trapped and suffocating inside a truck after it crashed while speeding in the state of Veracruz. Most were from Central America, and 48 were minors. Some were injured in the crash.
Last October, also in Veracruz state, four migrants suffocated in a truck carrying 55 people.
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