Just before dawn, on 19 November 1984, an explosion at a gas plant in San Juanico, Mexico killed hundreds of people, injured thousands and destroyed buildings.
Virginia Martínez Tellez was a young teenager at the time and talks to Jen Dale about how she and her family escaped the intense heat and fire of what's considered one of the world's deadliest industrial gas accidents.
This programme contains distressing content.
Eye-witness accounts brought to life by archive. Witness History is for those fascinated by and curious about the past. We take you to the events that have shaped our world through the eyes of the people who were there.
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(Photo: The San Juanico explosion. Credit: GDA/Associated Press)
