San Antonio police find 8 bodies, living victims stuffed into back of overheated truck in San Antonio in 'horrific' human trafficking case.

Eight people were found dead inside a tractor-trailer outside a San Antonio Walmart Saturday, police said.

"A number of other people" were found inside the truck on the 101 degree summer day. They were taken to local hospitals after being held in the air condition-less vehicle.

The driver of the truck approached a Walmart employee late Saturday night to ask for water. The employee gave the driver water and called the police.

The police arrived on the scene and found the eight bodies, as well as the other victims, in the back of the truck.

Surveillance video showed that other vehicles had arrived and taken people from the truck before police were called.

Police Chief William McManus called the case "a human trafficking crime this evening" and “a horrific tragedy.”

Chief McManus said that several juveniles were among the dead.

The driver of the truck has been arrested.

19 people died inside a tractor-trailer in a similar human-trafficking case in Texas in 2003.