Chualar train-bus collision

The Chualar bus crash took place on September 17, 1963, when a freight train collided with a makeshift "bus" — a flatbed truck with two long benches and a canopy — carrying 58 migrant farmworkers on a railroad crossing outside Chualar in the Salinas Valley, California, United States, killing 32 people and injuring 25. The crash is ranked as the deadliest automobile accident in U.S. history according to the National Safety Council, although the March 14, 1940 Alamo, Texas train-bus collision is deadlier with 34 fatalities.

Source: Wikipedia — Chualar train-bus collision (CC BY-SA 4.0)