Ferromex

A train derailment in Sonora spilled approximately 59,000 liters of sodium hydrosulfide, a hazardous chemical, near the U.S. border. Rain has complicated cleanup efforts, raising environmental concerns, while emergency services and authorities are addressing the spill and monitoring potential contamination.

A Ferromex train operated by Grupo Mexico derailed in Sonora, releasing approximately 59,000 litres of sodium hydrosulfide, a toxic industrial compound that can produce hazardous hydrogen sulfide gas when exposed to water or acids. Local authorities implemented evacuations and shelter-in-place protocols in response to the spill.

Two separate freight train derailments occurred in Mexico, prompting emergency responses. In Tamaulipas, a Pemex-owned gasoline tank car derailed, triggering a Code Red and containment efforts. In Sonora, a Ferromex freight train derailed, causing a chemical spill, with specialists assessing risks. No injuries or spills were reported in either incident.