A truck driver admitted to being paid for smuggling people into the US after 19 undocumented immigrants were discovered inside of his tractor trailer in Texas on Friday morning.

The undocumented immigrants were found on December 15th at the Falfurrias checkpoint in Falfurrias, Texas.

According to Valley Central News, the immigrants found inside the refrigerated trailer had been inside for at least one day, riding in temperatures of around 47 degrees as they tried to make their way into the United States from Mexico, Guatemala, El Salvador, and Honduras.

The truck driver, Jesus Migel Robledo, told agents that he knew about the 19 undocumented immigrants in the trailer and that he was paid $2,500 per person to bring them into the US. Robledo also told agents that he had instructions to contact an individual called ‘El Juanito’ once he arrived in San Antonio, Texas for further instructions.

Robledo has since been taken into custody and faces charges of harboring illegal aliens.