SAN ANTONIO/MEXICO CITY—The alleged driver of a truck carrying dozens of migrants who died in the suffocating heat in Texas this week initially tried to pass himself off as a victim to escape authorities before he was arrested, U.S. and Mexican officials said on Wednesday.
The death toll in the incident rose to 53 as some migrants who had been trapped in the sweltering tractor-trailer, which was left in a desolated area near a highway in San Antonio, died in the hospital, local officials said.
