Dozens of people have been found dead in the back of a lorry due to extreme heat, with " teenagers and young adults" among the victims.
San Antonio Fire Department Chief Charles Hood said that his crew found "stacks of bodies" inside the trailer, in what appears to be one of the most deadly recent incidents of human smuggling along the US-Mexico border.
He added that as well as the 46 dead, another 16 people were taken to hospital for heat stroke and exhaustion, including four minors. Survivors were said to be "hot to the touch" and suffering from heat exhaustion and heat stroke.
