SAN ANTONIO (CBS News) — At least 50 migrants were found dead in the back of a tractor-trailer in San Antonio on Monday, federal law enforcement officials confirmed to CBS News on Tuesday. Sixteen others — 12 adults and four children — were taken to local hospitals with heat-related injuries.
The federal officials confirmed to CBS News Homeland Security and Justice reporter Nicole Sganga that this appears to be the deadliest human smuggling case in modern U.S. history.READ MORE: Trump says he took the Fifth in questioning in New York Attorney General fraud investigation
On Tuesday morning, Mexican Foreign Relations Secretary Marcelo Ebrard said on Twitter, citing U.S. authorities, that the victims included 22 Mexicans, 7 Guatemalans, and two Hondurans. Investigators are still determining the nationalities of those who died or were hospitalized, Sganga reports.READ MORE: Gabby Petito's Family Seeks $50 Million From Utah Police Department For Inadequate Response To Brian Laundrie's Abuse
Police Chief William McManus said at a press conference Monday that authorities received a call at approximately 5:50 p.m. local time from a worker who had heard cries for help and found the trailer with its doors partially open. The worker found a number of dead bodies inside the trailer, McManus said.
McManus said three people were in custody, though he noted that authorities aren’t certain they’re connected to the situation. The incident is now under federal investigation.MORE NEWS: The FDA Authorizes Change In How Monkeypox Vaccine Is Given