5:45 pm on November 19, 1984 in San Juanico, (near Mexico City, Mexico), 54 spherical type liquid petroleum gas (LPG) containers exploded into huge fireballs. This was one third of Mexico City's liquid petroleum gas supply exploded. The accident caused a huge series of explosions in one of the storage and distribution plants of PEMEX, killed around 500 to 600 people and causing severe burns in 5000-7000 others. It is classified as one of the deadliest tragedies of modern Mexico.