Seven people are now dead after what investigators believe was a human smuggling operation gone catastrophically wrong along the Texas freight rail corridor. Six bodies were discovered inside a sealed Union Pacific boxcar in Laredo on Sunday, May 10, 2026. A seventh body turned up the following day along railroad tracks in Bexar County, roughly 150 miles to the north. The case has now been taken over by Homeland Security Investigations, and the whole thing is being treated as a criminal smuggling probe.
This is the kind of story that makes you stop scrolling. Not because it’s surprising, exactly, but because of how preventable it all seems, and how brutal the details actually are when you sit with them for a minute.
What Happened at the Laredo Rail Yard
Around 3 p.m. on Sunday, a Union Pacific employee was conducting a routine inspection at a rail yard near mile marker 13 off Interstate 35 in north Laredo. The yard sits at 12101 Jim Young Way. When the employee opened one of the boxcars, they found six people dead inside. No survivors. Laredo police and fire crews responded and confirmed what the employee had already seen.
The boxcar was sealed. According to Bexar County Sheriff Javier Salazar, who got involved after the seventh body was found, those containers cannot be opened from the inside. Think about that for a second. Once someone closes that door on you from the outside, you’re locked in. There’s no handle, no latch, no emergency release. You’re in a metal box.
The Temperature Inside That Box
Laredo hit 97 degrees on Sunday afternoon. That’s the air temperature, measured in the shade with ventilation. Inside a sealed metal boxcar with no airflow, the temperature can climb dramatically higher. Sheriff Salazar estimated those containers can reach up to 150 degrees in direct sun. Dr. Corinne Stern, the Webb County Medical Examiner, completed one autopsy and confirmed the first victim, a 29-year-old woman from Mexico, died of hyperthermia. That’s heat stroke. Stern estimates it took up to eight hours for the people inside to die.
Eight hours. Trapped in a metal container in South Texas in May. There’s no amount of water or preparation that makes that survivable. The medical examiner said she believes all six of the Laredo victims likely died the same way, though formal examinations for the remaining five were still pending as of Monday.
Who the Victims Were
Authorities have identified two of the seven so far. The 29-year-old woman from Mexico was the first. A 24-year-old man from Honduras was the second. Among the remaining unidentified victims, the medical examiner’s office said one appears to be a teenage boy. In total, the Laredo group consisted of five males and one female.
All of the victims’ cell phones were collected and turned over to investigators for data extraction. Identification cards found with the bodies suggest the group came from Mexico and Honduras. Fingerprints were taken and shared with U.S. Border Patrol through the Missing Alien Program. The Webb County Medical Examiner’s Office also contacted the Mexican consulate to help with identification and to reach the victims’ families.
The seventh person, found in Bexar County, was carrying a Mexican voter registration card. He has not yet been formally identified.
The Seventh Body, Found 150 Miles Away
On Monday afternoon, a man’s body was discovered near Pue and Wolf Road in southwest Bexar County, close to the small community of Macdona. Union Pacific Railroad police and federal ICE agents found him near the tracks. Sheriff Salazar explained that a door sensor on the boxcar had registered an alert near San Antonio over the weekend, indicating the container had been opened at some point.
Here’s the part that fills in some of the picture. According to Salazar, the train originated from Del Rio. When it arrived at a station near San Antonio, it split. Half went south to Laredo. The other half headed to Houston. That means this group of people was sealed inside the boxcar before the train even reached San Antonio. They rode in that container through the split and all the way down to Laredo.
As for the seventh victim, investigators have two theories. Either smugglers found his body during the trip and pushed him out to avoid being connected to a death, or he had been leaning against the door when someone opened it and he fell out. Neither possibility is comforting.
Someone Called for Help on Saturday
This might be the hardest detail in the entire story. On Saturday evening, a full day before the bodies were found, the San Antonio Police Department received a phone call. A person in another state said they’d gotten a message from a relative who believed he was trapped inside a boxcar. The relative said the car was overheating and that the person inside was feeling sick because “it was getting very, very hot.”
San Antonio police responded to the call. They searched but didn’t find anything. By the time authorities in Laredo opened that boxcar on Sunday afternoon, everyone inside was already dead.
Think about the timeline. Someone inside the boxcar was still alive Saturday evening. They managed to send a message asking for help. That message reached a family member in another state, who called the police. The police went out looking. And still, no one could get to them in time. The train kept moving. The temperature kept climbing.
The Investigation Now
Homeland Security Investigations has taken the lead on the case, with assistance from the Laredo Police Department, Texas Rangers, and Union Pacific Railroad Police. HSI is treating the case as a “potential human smuggling event.” ICE confirmed the same.
Sheriff Salazar also raised the possibility that the group may have been larger than seven. “It’s quite possible that load of people may have been somewhat bigger than the seven bodies we’re up to now,” he told reporters. “Or it’s possible that may have been it.” The train split in San Antonio. One half went to Laredo, the other to Houston. If more people were in a different car on the Houston-bound portion of the train, investigators are presumably looking into that as well.
Union Pacific released a brief statement: “Union Pacific is saddened by this incident and is working closely with law enforcement to investigate,” said company spokesman Daryl Bjoraas. The company has installed inspection portals that scan trains and take photographs to try to spot irregularities suggesting contraband or stowaways. But the system isn’t foolproof, and the trains are enormous. Hundreds of cars per train, many sealed, many crossing the border daily.
Why Laredo Specifically
Laredo is one of the busiest trade ports in the entire country. As of 2024, it accounted for 62 percent of Texas’s land port trade, valued at nearly $340 billion. That means a staggering volume of freight moves through the city every single day by rail and by truck. Smuggling on freight trains has been a persistent concern for years because the trains headed into the U.S. often slow down or stop in Mexico before crossing the border. Those pauses give smugglers or migrants an opportunity to climb aboard.
About 40 people were encountered daily in March by Border Patrol agents in Laredo crossing illegally, making it the third-busiest sector among nine along the southern border. Border encounters dropped toward the end of the Biden administration and reached record low numbers under the second Trump administration. But lower official crossing numbers don’t necessarily mean fewer people are attempting to get in. It may just mean they’re taking more dangerous routes.
What the Medical Examiner Said
Dr. Corinne Stern did not hold back when describing what responders found. She called the scene “horrific.” She also said immigrant deaths are a common occurrence in the 10-county region her office covers. “This spring has been busier than it was this time last year,” Stern told reporters.
Laredo police spokesperson Jose Espinoza echoed that sentiment. “It’s just becoming a common thing here in Laredo, especially being a border city,” Espinoza said. “People are traveling up north, and unfortunately, they’re using Laredo as one of their entry points.”
The Bexar County Sheriff’s Office said charges are pending. Someone loaded these people into that boxcar and sealed them in. Someone collected money for it. Investigators are now tracing the financial trail and working through the data pulled from the victims’ phones. If smugglers were involved, and all signs point to that being the case, someone is going to be held responsible for what happened inside that metal box on a 97-degree day in South Texas.
Seven people. A sealed door that doesn’t open from the inside. A phone call that came too late. And a train that just kept rolling north.