EFELos Angeles, US

Two men arrested for their alleged connection to the migrant smuggling incident that resulted in the deaths of 53 people who were left in an abandoned truck in San Antonio, Texas, could face life imprisonment or the death penalty if convicted.

Out of 64 undocumented migrants discovered in or nearby the truck on Monday, 48 were found dead at the scene and 16 were taken to hospital where five died, according to Homeland Security Investigations (HSI). Of the 48, 22 were Mexican, seven Guatemalan, two Honduran and 17 were of unknown origin as identification continues.

Homero Zamorano, 45, is charged with alien smuggling resulting in death and Christian Martínez, 28, is charged with conspiracy to transport illegal aliens resulting in death, the US Attorney's Office of the Western District of Texas said in a statement on Wednesday.