Seven people believed to be immigrants from Mexico and Honduras died from heat stroke while being smuggled in a sealed Union Pacific boxcar in South Texas. Six bodies were discovered inside the boxcar at a rail yard in Laredo on May 10, 2026, when temperatures reached 97–105 degrees. The victims ranged in age from 14 to 56, with three from Mexico and three from Honduras. A woman inside the container called her sister reporting dangerous heat and physical distress, prompting a police response. A seventh body was found near railroad tracks in Bexar County, approximately 150 miles north of Laredo, on May 11 and is believed connected to the incident. Authorities attributed the deaths to heat-related illness and contacted the Department of Homeland Security, with federal officials leading the investigation into the human smuggling operation.