On 7 January 2008, a fire occurred in Icheon, South Korea, killing 40 workers as they were injecting urethane foam into the walls of the 20,000 square-meter basement.
[1][2][3][4] It happened at a cool warehouse that was under construction at a refrigerated goods facility.
[1] More than 500 firefighters fought the fire[3] from which witnesses claimed to hear multiple explosions.
Along with thick black smoke, toxic fumes hampered interior-attack firefighting operations.
Holes were subsequently drilled in the roof to allow the toxins and smoke to escape.