Mexican investigators were working to determine the cause of a crash in which a tanker truck carrying more than 13,000 gallons (49,500 liters) of gas exploded on a major highway in the capital, killing at least three people and injuring 70.
The fiery crash Wednesday that burned more than two-dozen vehicles created a gruesome scene of badly burned survivors staggering in the street in tattered clothing as first responders rushed to the scene. The injured suffered second and third-degree burns.
