Deaths of at least six people believed to be due to heat inside shipping container in Texas

Seventh body found near railroad tracks thought to be connected to what authorities call ‘potential human smuggling event’Federal agents are investigating thought to be immigrants found inside a shipping container at a Union Pacific rail yard near the border with Mexico in Laredo, Texas, on Sunday as a “potential human smuggling event”.Officials reportedly have also said the death of a seventh person whose body was found near railroad tracks outside San Antonio, Texas – 150 miles (241km) to the north – may be connected to the case.Guardian staff contributed reporting